site master s251b

Site MasterModel S251BAntenna and

Cable Analyzer

User's Guide

Hand-Held Tester for Transmission Linesand other RF Components

WARRANTYThe Anritsu product(s) listed on the title page is (are) warranted against defects inmaterials and workmanship for one year from the date of shipment.Anritsu's obligation covers repairing or replacing products which prove to be defec-tive during the warranty period. Buyers shall prepay transportation charges forequipment returned to Anritsu for warranty repairs. Obligation is limited to the origi-nal purchaser. Anritsu is not liable for consequential damages.

LIMITATION OF WARRANTYThe foregoing warranty does not apply to Anritsu connectors that have failed due tonormal wear. Also, the warranty does not apply to defects resulting from improper orinadequate maintenance by the Buyer, unauthorized modification or misuse, or op-eration outside the environmental specifications of the product. No other warranty isexpressed or implied, and the remedies provided herein are the Buyer's sole andexclusive remedies.

TRADEMARK ACKNOWLEDGMENTSMS-DOS, Windows, Windows 95, Windows NT, and Windows 98 are registeredtrademarks of the Microsoft Corporation.Anritsu and Site Master are trademarks of Anritsu Company.

NOTICEAnritsu Company has prepared this manual for use by Anritsu Company personneland customers as a guide for the proper installation, operation and maintenance ofAnritsu Company equipment and computer programs. The drawings, specifications,and information contained herein are the property of Anritsu Company, and any un-authorized use or disclosure of these drawings, specifications, and information isprohibited; they shall not be reproduced, copied, or used in whole or in part as thebasis for manufacture or sale of the equipment or software programs without theprior written consent of Anritsu Company.

September 1999 10580-00032Copyright � 1999 Anritsu Co. Revision: A

Table of Contents

Chapter 1 - General Information 1-1Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1Standard Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2Optional Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2Performance Specifications . . . . . . . . . . . . . . . . . . . . . . . . . 1-3Preventive Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7Annual Verification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

Chapter 2 - Getting Started 2-1Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1Charging a New Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Charging the Battery in the Site Master . . . . . . . . . . . . . . . . . . . . . 2-1Charging the Battery in the Optional Charger . . . . . . . . . . . . . . . . . . 2-1

Battery Charge Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Discharging the NiMH Battery . . . . . . . . . . . . . . . . . . . . . . . 2-3

Battery Life . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Important Battery Information . . . . . . . . . . . . . . . . . . . . . . . 2-3

Chapter 3 - Functions and Operations 3-1Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1Front Panel Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1Test Connector Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2Keypad Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3Soft Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6Power Monitor Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-20Printing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-21

Printing a Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-21Printer Switch Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-22

Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-23Self Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-23Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-24

Self Test Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-24Range Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-25

Using the Soft Carrying Case. . . . . . . . . . . . . . . . . . . . . . . . 3-28

Chapter 4 - Measurements 4-1Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1Measurement Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1Power On Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Calibration Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

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Selecting the Frequency Range . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3Performing a Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3Setting the Amplitude Scale . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4Saving the Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4Recalling a Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4Saving a Display to Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5Recalling a Display From Memory . . . . . . . . . . . . . . . . . . . . . . . . 4-5

SWR (Return Loss) and Cable Loss Measurement . . . . . . . . . . . . 4-9Required Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9Device-Under-Test Specification. . . . . . . . . . . . . . . . . . . . . . . . . . 4-9Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9Selecting the Measurement Mode . . . . . . . . . . . . . . . . . . . . . . . . . 4-9Selecting the Frequency Range . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9Performing a Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10SWR or Return Loss Measurement . . . . . . . . . . . . . . . . . . . . . . . 4-11Set the Amplitude Scale and Limit Line . . . . . . . . . . . . . . . . . . . . . 4-11Setting the Markers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13

Cable Loss Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14Setting the Amplitude Scale . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14Setting the Segment Limit LInes . . . . . . . . . . . . . . . . . . . . . . . . . 4-14

DTF Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-16Required Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-16Device-Under-Test Specification . . . . . . . . . . . . . . . . . . . . . . . . . 4-16Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-16Selecting the Measurement Mode . . . . . . . . . . . . . . . . . . . . . . . . 4-16Performing a Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-17DTF Measurement (Determining the Length of the Cable) . . . . . . . . . . 4-18Setting the Amplitude Scale . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-18Setting the Marker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-18DTF Measurement (Determining the quality of the cable.) . . . . . . . . . . 4-20Setting the Amplitude Scale . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-20Setting the Markers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-20

Insertion Gain (Amplifier) Measurement . . . . . . . . . . . . . . . . . 4-22Required Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-22Device-Under-Test Specification . . . . . . . . . . . . . . . . . . . . . . . . . 4-22Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-22Selecting the Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-22Selecting the Frequency Range . . . . . . . . . . . . . . . . . . . . . . . . . . 4-22Performing a Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-22Amplifier Gain Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . 4-24Setting the Markers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-24Activating the Bias Tee . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-25Setting the Amplitude Scale . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-25

Making Power Measurements . . . . . . . . . . . . . . . . . . . . . . . 4-27Entering Power Monitor Mode. . . . . . . . . . . . . . . . . . . . . . . . . . 4-27Zeroing the Power Monitor. . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-27Measuring High Input Power Levels. . . . . . . . . . . . . . . . . . . . . . . 4-27Displaying Power in dBm and Watts . . . . . . . . . . . . . . . . . . . . . . 4-27Displaying Relative Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-27

ii

Chapter 5 - Software Tools Program 5-1Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1Communication Port Setting. . . . . . . . . . . . . . . . . . . . . . . . . 5-1

Changing COM Port Settings–Windows 95/98/NT . . . . . . . . . . . . . . . 5-1

Software Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3Plot Capture. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3

Capture multiple traces to a database. . . . . . . . . . . . . . . . . . . . . . . 5-4Capture single or multiple traces to PC screen . . . . . . . . . . . . . . . . . . 5-4

Custom Cable List Uploading and Downloading. . . . . . . . . . . . . . 5-5Uploading a Cable List to the Site Master Custom Cable Table . . . . . . . . 5-5Downloading a Cable List from the Site Master Custom Cable Table . . . . . 5-5Saving a Custom Cable List . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5

Program Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6Fault Location Software . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6Smith Chart Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6Saving a Plot as a Windows Metafile or as a Spreadsheet File . . . . . . 5-7Pasting a Plot in Graphic or Spreadsheet Format . . . . . . . . . . . . . 5-7Saving Data to a Database . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7“Drag-n-Drop” . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7Printing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8

Appendix A - Reference Data A-1Coaxial Cable Technical Data. . . . . . . . . . . . . . . . . . . . . . . . A-1

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Chapter 1General Information

IntroductionThis chapter provides a description, performance specifications, optional accessories, pre-ventive maintenance, and calibration requirements for the Site Master model S251B.Throughout this manual, the term Site Master will refer to the S251B.

Model Frequency Range PortsS251B 625 to 2500 MHz 2

DescriptionThe Site Master is a hand held SWR/RL (standing wave ratio/return loss), transmissiongain/loss and Distance-To- Fault (DTF) measurement instrument that includes a built-insynthesized signal source. All models include a keypad to enter data and a liquid crystaldisplay (LCD) to provide graphic indications of SWR, RL or dB over the selected fre-quency range and SWR or RL over the selected distance. The Site Master is capable of upto 2.5 hours of continuous operation from a fully charged field-replaceable battery and canbe operated from a 12.5 dc source. Built-in energy conservation features can be used to ex-tend battery life over an eight-hour work day.

The Site Master is designed for measuring SWR, return loss, or one-port cable insertionloss and locating faulty RF components in antenna systems. Power monitoring is availableas an option. Site Master model S251B includes transmission gain or loss (S21) measure-ments and an optional built-in bias tee. The displayed trace can be scaled or enhanced withfrequency markers or a limit line. A menu option provides for an audible “beep” when thelimit value is exceeded. To permit use in low-light environments, the LCD can be back litusing a front panel key.

Standard AccessoriesThe Software Tools PC-based software program provides a database record for storingmeasurement data. Site Master Software Tools can also convert the Site Master display to aMicrosoft Windows� 95/98/NT workstation graphic. Measurements stored in the Site Mas-ter internal memory can be downloaded to the PC using the included null-modem serial ca-ble. Once stored, the graphic trace can be displayed, scaled, or enhanced with markers andlimit lines. Historical graphs can be overlaid with current data, and underlying data can beextracted and used in spreadsheets or for other analytical tasks.

The Site Master Software Tools program also performs DTF (Distance To Fault) and FaultLocation.

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1

The following items are supplied with the basic hardware.

� Soft Carrying Case

� AC-DC Adapter

� Automotive Cigarette Lighter 12 Volt DC Adapter,

� CDROM disk containing the Software Tools program. This program contains Fault Lo-cation (DTF) and Smith Chart functions

� Serial Interface Cable (null modem type)

� One year Warranty (includes battery, firmware, and software)

� User's Guide

Options� Option 5 — Add RF Wattmeter Power Monitor

� Option 10A � Add Bias Tee

Optional Accessories� Anritsu Precision N (m) Open/Short/Load, 42 dB, Part No. OSLN50LF

� Anritsu Precision N (f) Open/Short/Load, 42 dB, Part No. OSLNF50LF

� Anritsu Precision N (m) Short/Open, Part No. 22N50

� Anritsu Precision N (f) Short/Open, Part No. 22NF50

� Site Master Precision N (m) Load, 42 dB, Part No. SM/PL

� Site Master Precision N (f) Load, 42 dB, Part No. SM/PLNF

� 7/16 (m) Precision Open/Short/Load, Part No. 2000-767

� 7/16 (f) Precision Open/Short/Load, Part No. 2000-768

� Adapter, Precision N (m) to N (m), Part No. 34NN50A

� Adapter, Precision N (f) to N (f), Part No. 34NFNF50

� Adapter, 7/16 (f) to N (m), Part No. 510-90

� Adapter, 7/16 (f) to N (f), Part No. 510-91

� Adapter, 7/16 (m) to N (m), Part No. 510-92

� Adapter, 7/16 (m) to N (f), Part No. 510-93

� Adapter, 7/16 DIN (m) to 7/16 DIN (m), Part No. 510-96

� Adapter, 7/16 DIN (f) to 7/16 DIN (f), Part No. 510-97

� Armored Test Port Extension Cable, 1.5 meter, N (m) toN (f), Part No. 15NNF50-1.5A



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Chapter 1 General Information

� Armored Test Port Extension Cable, 1.5 meter, N (m) toN (m), Part No. 15NN50-1.5A



� Armored Test Port Extension Cable, 1.5 meter, N (m) to7/16 DIN (f), Part No. 15NDF50-1.5A

� Armored Test Port Extension Cable, 1.5 meter, N (m) to7/16 DIN (m), Part No. 15ND50-1.5A

� RF Detector, 1 to 3000 MHz, N(m) input connector, 50 Ohms, Part No. 5400-71N50

� Transit Case for Site Master, Part No. 760-215A

� HP Deskjet 340 Printer, Part No. 2000-766

� Serial-to-Parallel Converter Cable (use with the HP 340 Printer), Part No. 2000-753

� Seiko DPU-414 Thermal Printer, Part No. 2000-754 (U.S.) or2000-761 (Europe)

� US Adapter (use with the DPU-414 Printer),Part No. 2000-1002

� Europe Adapter (use with the DPU-414 Printer)Part No. 2000-1003

� Battery Pack (use with the DPU-414 Printer)Part No. 2000-1004

� Serial Interface Cable (use with the DPU-414 Printer),Part No. 2000-10012

� Thermal Paper (use with the DPU-411/DPU-414 Printer),Part No. 2000-755

� Rechargeable Battery, NiMHPart No. 633-27

� Battery Charger, NiMH onlyPart No. 2000-1029

Performance SpecificationsPerformance specifications are provided in Table 1-1, on the following page.

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Specifications are valid when the unit is calibrated at ambient temperature after a 5 minutewarmup.

Description ValueSite Master: Frequency Range:

S251B 625 to 2500 MHz

Frequency Accuracy (RF Source Mode): 75 parts per million @ 25°C*

Frequency Resolution: 10 kHz

SWR:RangeResolution

1.00 to 65.000.01

Return Loss:RangeResolution

0.00 to 54.00 dB0.01 dB

**Distance-To-Fault (DTF):Range (in meters)Resolution (in meters)(Rectangular Windowing)

0 to (Resolution x dp)

( . )( )1 5 108� VF

f�

Where Vf is the relative propagation velocity ofthe cable .dp is the number of data points (128, 256,512).�F is F2 - F1 (in Hz.)

Insertion Loss/GainRange:Resolution

RF SourceFrequencyPower Output (nominal)

Wattmeter Power Monitor:Range

Offset RangeResolution

–120.00 to 100.00 dB0.01 dB

625 to 2500 MHz @ 10 kHz stepselectable, – 30 dBm or + 6 dBm

–80.0 to +80 dBm or10.0 pW to 100.0 kW0 to +60.0 dB0.1 dB or0.1 xW

Test Port, Type N 50 Ohms

***Immunity to Interfering signalsup to the level of: RF Out

RF In+10 dBm, reflection+ 30 dBc transmission

Maximum Input (Damage Level):Test Port, Type NRF Detector

+22 dBm+20 dBm

Measurement Accuracy:Measurement accuracy depends on calibration components. Precision calibration load providesa corrected directivity of 42 dB.

Cable Insertion Loss:RangeResolution

0.00 to 54.00 dB0.01 dB

Table 1-1. Performance Specifications (1 of 2)

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Bias Teeinput voltage:output current:

12.5 to 15.0 Vdc270 ma maximum surge, 25 ms240 ma maximum steady

General

Internal Memory:Trace MemoryInstrument config.RS-232

200 maximum10 setup locations with associated calibration9 pin D-sub, three wire serial

Electromagnetic Compatibility Meets European community requirements forCE marking

Power Supply:External DC Input +12.5 to +15 Vdc, 1100 mA max.

Temperature:StorageOperation

–20° C to 75° C0° C to 50° C

Weight: 1.82 kg (4.0 pounds)

Dimensions: 25.4 x 17.8 x 6.1 cm(10 x 7 x 2.4 inches)

* ±2 ppm/�°C from 25°C** Fault location is accomplished by inverse Fourier Transformation of data taken with the Site Master. Resolution andmaximum range depend on the number of frequency data points, frequency sweep range and relative propagation veloc-ity of the cable being tested.*** Immunity measurement is made in CW mode with incoming interfering signal exactly at the same frequency (worstcase situation). Typical immunity is better when swept frequency is used.

Table 1-2. Performance Specifications (2 of 2)

Preventive MaintenanceSite Master preventive maintenance consists of cleaning the unit and inspecting and clean-ing the RF connectors on the instrument and all accessories.

Clean the Site Master with a soft, lint-free cloth dampened with water or water and a mildcleaning solution.

CAUTION: To avoid damaging the display or case, do not use solvents or abra-sive cleaners.

Clean the RF connectors and center pins with a cotton swab dampened with denatured alco-hol. Visually inspect the connectors. The fingers of the N (f) connectors and the pins of theN (m) connectors should be unbroken and uniform in appearance. If you are unsure whetherthe connectors are good, gauge the connectors to confirm that the dimensions are correct.

Visually inspect the test port cable(s). The test port cable should be uniform in appearance,not stretched, kinked, dented, or broken.

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CalibrationThe Site Master is a field portable unit operating in the rigors of the test environment. AnOpen-Short-Load (OSL) or Open-Short-Load-Through (OSLT) calibration should be per-formed prior to making a measurement in the field. A built-in temperature sensor in the SiteMaster advises the user, via an icon located on the right side of the LCD screen, that the in-ternal temperature has exceeded a safety window, and the user is advised to perform an-other OSL or OSLT calibration in order to maintain the integrity of the measurement.

NOTES:For best calibration results—compensation for all measurement uncertain-ties—ensure that the Open/ Short/Load is at the end of the test port or optionalextension cable; that is, at the same point that you will connect the antenna ordevice to be tested.

For best results, use a phase stable Test Port Extension Cable (see OptionalAccessories). If you use a typical laboratory cable to extend the Site Master testport to the device under test, cable bending subsequent to the OSL or OSLTcalibration will cause uncompensated phase reflections inside the cable. Thus,cables which are NOT phase stable may cause measurement errors that aremore pronounced as the test frequency increases.

For optimum calibration, Anritsu recommends using precision calibration components.

Annual VerificationAnritsu recommends an annual calibration and performance verification of the Site Masterand the OSL calibration components by local Anritsu service centers. Anritsu service cen-ters are listed in Table 1-2 on the following page.

The Site Master itself is self-calibrating, meaning that there are no field-adjustable compo-nents. However, the OSL calibration components are crucial to the integrity of the calibra-tion and therefore, must be verified periodically to ensure performance conformity. This isespecially important is the OSL calibration components have been accidentally dropped orover-torqued.

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UNITED STATESANRITSU COMPANY

685 Jarvis Drive

Morgan Hill, CA 95037-2809

Telephone: (408) 776-8300,

1-800-ANRITSU

FAX: 408-776-1744

ANRITSU COMPANY

10 New Maple Ave., Unit 305

Pine Brook, NJ 07058

Telephone: (201) 227-8999,

1-800-ANRITSU

FAX: 201-575-0092

ANRITSU COMPANY

1155 E. Collins Blvd

Richardson, TX 75081

Telephone: 1-800-ANRITSU

FAX: 972-671-1877

AUSTRALIAANRITSU PTY. LTD.

Unit 3, 170 Foster Road

Mt. Waverley, VIC 3149

Australia

Telephone: 03-9558-8177

Fax: 03-9558-8255

BRAZILANRITSU ELECTRONICA LTDA.

Praia de Botafogo 440, Sala 2401

CEP 22250-040,Rio de Janeiro,RJ,

Brasil

Telephone: 021-28-69-141

Fax: 021-53-71-456

CANADAANRITSU INSTRUMENTS LTD.

215 Stafford Road, Unit 102

Nepean, Ontario K2H 9C1

Telephone: (613) 828-4090

FAX: (613) 828-5400

CHINAANRITSU BEIJING SERVICE CENTER

Beijing Fortune Building

416W, 5 Dong San Huan Bei Lu

Chaoyang qu

Beijing 100004, China

Telephone: 011065909237

FAX: 011065909236

FRANCEANRITSU S.A

9 Avenue du Quebec

Zone de Courtaboeuf

91951 Les Ulis Cedex

Telephone: 016-44-66-546

FAX: 016-44-61-065

GERMANYANRITSU GmbH

Grafenberger Allee 54-56

D-40237 Dusseldorf, Germany

Telephone: 0211-96 85 50

FAX: 0211-96 85 555

INDIAMEERA AGENCIES (P) LTD

A-23 Hauz Khas

New Delhi 110 016

Telephone: 011-685-3959

FAX: 011-686-6720

ISRAELTECH-CENT, LTD

Haarad St. No. 7, Ramat Haahayal

Tel-Aviv 69701

Telephone: (03) 64-78-563

FAX: (03) 64-78-334

ITALYANRITSU Sp.A

Rome Office

Via E. Vittorini, 129

00144 Roma EUR

Telephone: (06) 50-22-666

FAX: (06) 50-22-4252

JAPANANRITSU CORPORATION

1800 Onna Atsugi-shi

Kanagawa-Prf. 243 Japan

Telephone: 0462-23-1111

FAX: 0462-25-8379

KOREAANRITSU CORPORATION LTD.

#901 Daeo Bldg. 26-5

Yeoido Dong, Youngdeungpo

Seoul Korea 150 010

Telephone: 02-782-7156

FAX: 02-782-4590

SINGAPOREANRITSU (SINGAPORE) PTE LTD

3 Shenton Way #24-03

Shenton House

Singapore 0106

Telephone: 022-65-206

FAX: 022-65-207

SOUTH AFRICAETESCSA

12 Surrey Square Office Park

330 Surrey Avenue

Ferndale, Randburt, 2194

South Africa

Telephone:01-11-787-7200

Fax: 01-11-787-0446

SWEDENANRITSU AB

Botvid Center

S-1585

Stockholm, Sweden

Telephone: (08) 534-717-00

FAX: (08) 534-717-30

TAIWANANRITSU CO., LTD.

8F, No. 96, Section 3

Chien Kuo N. Road

Taipei, Taiwan, R.O.C.

Telephone: (02) 515-6050

FAX: (02) 509-5519

UNITED KINGDOMANRITSU LTD.

200 Capability Green

Luton, Bedfordshire

LU1 3LU, England

Telephone: 015-82-41-88-53

FAX: 015-82-31-303

Table 1-2. Anritsu Service Centers

Chapter 2Getting Started

IntroductionThe Nickel Metal Hydride (NiMH) Battery supplied with the Site Master is shipped in adischarged state. Before using the Site Master, the internal battery must first be charged forthree hours, either in the Site Master or in the optional battery charger (Anritsu part num-ber: 2000-1029).

Charging a New BatteryNew batteries normally require three to five charge and discharge cycles before attainingmaximum performance. The NiMH battery supplied with the Site Master has already com-pleted three charge and discharge cycles at the factory and full battery performance shouldbe realized after your first charge.

Charging the Battery in the Site Master

The battery can be charged while still installed in the Site Master.

Step 1. Turn the Site Master off.

Step 2. Connect the AC-DC adapter (Anritsu part number: 40-115) to the Site Mastercharging port.

Step 3. Connect the AC adapter to a 120 VAC or 240 VAC power source as appropriatefor your application.

The green external power indicator on the Site Master will illuminate, indicatingthe presence of external DC power and the battery will begin charging. The indi-cator will remain lit as long as the battery is charging. Once the battery is fullycharged, the battery indicator will turn off. If the battery fails to charge, contactyour nearest Anritsu service center.

Charging the Battery in the Optional Charger

Up to two batteries can be charged simultaneously in the optional battery charger.

Step 1. Remove the NiMH battery from your Site Master and place it in the optionalcharger (Anritsu part number: 2000-1029).

Step 2. Connect the lead from the AC-DC adapter to the charger.

Step 3. Connect the AC-DC adapter to a 120 VAC or 240 VAC power source as appro-priate for your application.

Each battery holder in the optional charger has an LED charging status indicator. The LEDcolor changes as the battery is charged:

Red indicates the battery is chargingGreen indicates the battery is fully chargedYellow indicates the battery is in a waiting state (see below).

2 - 1

2

A yellow light may occur because the battery became too warm during the charge cycle.The charger will allow the battery to cool off before continuing the charge. A yellow lightmay also indicate that the charger is alternating charge to each of the two batteries.

A blinking red light indicates less than 13 VDC is being supplied to the charger stand.Check that the correct AC charger adapter is connected to the charger stand.

If a battery fails to charge, contact your nearest Anritsu Service Center.

You can charge the battery anytime. However, NiMH battery will last longer and performbetter if allowed to completely discharge before recharging. For maximum battery life, it isrecommended that the NiMH battery be completely discharged and recharged once everythree months.

Battery Charge IndicatorWhen the AC-DC adapter is unplugged from the Site Master, the battery indicator symbolwill be continuously displayed at the top left corner of the Site Master display (Figure 2-1).

A totally black bar indicates a fully charged battery. When LOW BATT replaces the batteryindicator bar at the top left corner, a couple of minutes of measurement time remains. If aflashing LOW BATT is accompanied by an audio beep at the end of each trace, the batteryhas approximately one minute of useable time remaining.

2 - 2

Chapter 2 Getting Started

HOLDRUN

STARTCAL

AUTOSCALE

SAVESETUP

RECALLSETUP

LIMIT MARKER

SAVEDISPLAY

RECALLDISPLAY

PRINT

MODE FREQ/DIST AMPLITUDE SWEEP

SYS

ENTER

CLEAR

ESCAPE

ONOFF

/

1 2

4

5 6

7 8

9 0

3

+-

.

Site Master S251B

625.0 2500.0

1384.45 MHz

2096.66 MHz

Battery Indicator

Figure 2-1. Site Master Battery Indicator

The battery status can also be checked by pressing the SYS key and the STATUS soft key.The Status table will display the remaining battery charge as a percent, as shown below.

Once all the power has drained from the battery, the Site Master display will fade. At thispoint, your Site Master will switch itself off and the battery will need to be recharged.

Discharging the NiMH BatteryThe NiMH battery will last longer and perform better if allowed to completely dischargebefore recharging. For maximum battery life, it is recommended that the NiMH battery becompletely discharged and recharged once every three months.

To discharge the battery, leave the Site Master switched on until the battery is drained. TheSite Master will display a LOW BATT message and an audio warning when the battery be-gins to run low. Allow the battery to fully discharge until the Site Master switches itself off.

NOTE:Do not attempt to discharge the battery by any other means. Never short-circuitthe battery terminals.

Battery LifeIt is normal for NiMH batteries to self-discharge during storage. To minimize battery dis-charge during storage, it is recommended that the battery be removed from the Site Masterif the Site Master is not to be used for a long period of time.

It is normal for NiMH battery to degrade to 80% of original capacity after 12 months ofcontinuous use.

The battery can be charged and discharged 300 to 500 times, but it will eventually wear out.The battery may need to be replaced when the operating time between charging is notice-ably shorter than normal.

Important Battery Information

2 - 3


STATUS

OSL CALIBRATIONFREQUENCY = 2.0 – 1000 MHzCAL TEMPERATURE (24–54� C)

CURRENT TEMPERATURE = 38� C

BATTERY CHARGE = 75%

PRESS ESCAPE TO CONTINUE

Figure 2-2. Example Status Table Display

� With a new NiMH battery, full performance is achieved after three to five completecharge and discharge cycles.

� Use only Anritsu approved battery packs.

� Recharge the battery only in the Site Master or in an Anritsu approved charger.

� When the Site Master or the charger is not in use, disconnect it from the power source.

� Do not charge batteries for longer than 24 hours; overcharging may shorten battery life.

� If left unused a fully charged battery will discharge itself over time.

� Discharge an NiMH battery from time to time to improve battery performance and bat-tery life.

� The battery can be charged and discharged hundreds of times, but it will eventually wearout.

� The battery may need to be replaced when the operating time between charging is notice-ably shorter than normal.

� Do not short-circuit the battery terminals.

� Do not drop, mutilate or attempt to disassemble the battery.

� Never use a damaged or worn out charger or battery.

� Always use the battery for its intended purpose only.

� Temperature extremes will affect the ability of the battery to charge: allow the battery tocool down or warm up as necessary before use or charging.

� Storing the battery in extreme hot or cold places will reduce the capacity and lifetime ofthe battery.

� Do not dispose of batteries in a fire!

� Batteries must be recycled or disposed of properly. Do not place batteries in garbage.

2 - 4


Chapter 3Functions and Operations

IntroductionThis chapter provides a brief overview of the Site Master functions and operations, provid-ing the user with a starting point for making basic measurements. For more detailed infor-mation, refer to Chapter 4, Measurements and Chapter 5, Software Tools.

The Site Master is designed specifically for field environments and applications requiringmobility. As such, it is a lightweight, handheld, battery operated unit which can be easilycarried to any location, and is capable of up to 2.5 hours of continuous operation from afully charged battery. Built-in energy conservation features allow battery life to be extendedover an eight-hour workday. The Site Master can also be powered by a 12.5 Vdc externalsource. The external source can be either the Anritsu AC-DC Adapter (P/N 40-115) or 12.5Vdc Automotive Cigarette Lighter Adapter (P/N 806-62). Both items are standard accesso-ries.

Front Panel OverviewThe Site Master menu-driven user interface is easy to use and requires little training. Mode,Frequency, Amplitude and Sweep function keys are located just below the display and areeasily configured for optimum measurements. Selection of one of these keys brings up afunction-specific menu on the right hand side of the display. The softkeys adjacent to thedisplay provide access to the various menu items (See Figure 3-1).

3-1

HOLDRUN

STARTCAL

AUTOSCALE

SAVESETUP

RECALLSETUP

LIMIT MARKER

SAVEDISPLAY

RECALLDISPLAY

PRINT


SYS

ENTER

CLEAR

ESCAPE

ONOFF

/

1 2

4

5 6

7 8

9 0

3

+-

.

SOFT KEYS

Site Master S251B

625.0 2500.0

1384.45 MHz

2096.66 MHz

Figure 3-1. Site Master Soft Keys

3

Test Connector PanelThe connectors and indicators located on the test panel are listed and described below.

12.5-15VDC(1100 mA)

12.5 to 15 Vdc @ 1100 mA input to power the unit or for battery charging.

WARNING

When using the AC-DC Adapter, always use a three-wire power cable connectedto a three-wire power line outlet. If power is supplied without grounding the equip-ment in this manner, there is a risk of receiving a severe or fatal electric shock.

BatteryCharging

Illuminates when the battery is being charged. The indicator automatically shutsoff when the battery is fully charged.

ExternalPower

Illuminates when the Site Master is being powered by the external charging unit.

SerialInterface

RS232 DB9 interface to a COM port on a personal computer (for use with theAnritsu Software Tools program) or to a supported printer.

RF Out RF output, 50 � impedance, for reflection measurements.

RF In RF input 50 � impedance for transmission loss or gain measurement.

RF Detector RF detector input for the Power Monitor.

3-2

Chapter 3 Functions and Operations

Keypad ControlsThis section contains an alphabetical listing of the Site Master front panel keypad controlsalong with a brief description of each. More detailed descriptions of the major functionkeys follow.

Turns the liquid crystal display (LCD) back-lighting ON or OFF. (Leaving backlighting off conserves battery power.)

LCD Contrast adjust. Use the Up/Down arrow key and ENTER to adjust the dis-play contrast.

AMPLITUDE Displays the amplitude or scale menu of the current operating mode.

NOTE:The AMPLITUDE and LIMIT keys are functionally identical.

AUTOSCALE

Automatically scales the display for optimum resolution.

ENTER Implements certain menu and key selections.

ESCAPECLEAR

Exits the present operation or clears the display. If a parameter is being edited,pressing this key will clear the value currently being entered and restore the lastvalid entry. Pressing this key again will close the parameter. During normalsweeping, pressing this key will move up one menu level.

FREQ/DIST Displays the Frequency or Distance menu depending on the measurement mode.

LIMIT Displays the amplitude or scale menu of the current operating mode.

MARKER Displays the marker menu of the current operating mode.

MODE Opens the mode selection box (below). Use the Up/Down arrow key to select amode. Press the ENTER key to implement.

3-3


MEASUREMENT MODE

FREQ - SWR

RETURN LOSS

CABLE LOSS - ONE PORT

INSERTION LOSS (+6 dBm)

INSERTION LOSS (–30 dBm)

DTF - SWR

RETURN LOSS

POWER MONITOR

RF SOURCE

Figure 3-2. Mode Selection Box

ONOFF

Turns the Site Master on or off. When turned on, the system state at the lastturn-off is restored. If the ESCAPE/CLEAR key is held down, the factory presetstate is restored.

PRINT Prints the current display to the selected printer via the RS232 serial port.

RECALLDISPLAY

Recalls a previously saved trace from memory. When the key is pressed, a Re-call Trace selection box appears on the display. Select a trace using theUp/Down arrow key and press the ENTER key to implement.

To erase a saved trace, highlight the trace and select the DELETE TRACEsoftkey. To erase all saved traces, select the DELETE ALL TRACES softkey.

RECALLSETUP

Recalls a previously saved setup from memory location 1 through 10. When thekey is pressed, a RECALL SETUP selection box appears on the display. Select asetup using the Up/Down arrow key and press the ENTER key to implement.Setup 0 recalls the factory preset state.

RUNHOLD

When in the Hold mode, this key starts the Site Master sweeping and provides aSingle Sweep Mode trigger; when in the Run mode, it pauses the sweep. Whenin the Hold mode, the hold symbol (page 3-23) appears on the LCD. Hold modeconserves battery power.

SAVEDISPLAY

Saves up to 200 displayed traces to non-volatile memory. When the key ispressed, TRACE NAME: appears in the lower left of the display. Save the dis-play with up to 16 alphanumeric characters for that trace name and press theENTER key to implement.

SAVESETUP

Saves the current system setup to 1 of 10 internal non-volatile memory loca-tions. When the key is pressed, a SAVE SETUP selection box appears on the dis-play. Use the Up/Down arrow key to select a setup and press the ENTER key toimplement.

STARTCAL

Starts the calibration in SWR, Return Loss, Cable Loss, insertion loss, insertiongain, or DTF measurement modes. Follow the text in the lower left message areathat instructs you to do the following:

� CONNECT OPEN TO RF out PORT, Press ENTERThe Site Master then measures the calibration “open” that you must attach tothe end of the test port or to the end of the test port cable attached to the RFOut port.

� CONNECT SHORT TO RF out PORT, Press ENTERThe Site Master then measures the calibration “short” that you must attach tothe end of the test port or to the end of the test port cable attached to the RFOut port.

� CONNECT LOAD TO RF out PORT, Press ENTERThe Site Master then measures the 50� load that you must attach to the endof the test port or to the end of the test port cable attached to the RF Out port.

3-4


NOTE:The combined measurements of an open, a short, and a known-impedanceload normalizes the measurement system to account for uncertainties intro-duced by measurement-system components (e.g., cables, connectors, etc.).

� CONNECT LOADS TO RF Out PORT and RF In PORT, Press ENTER.

The Site Master then measures the isolation between the RF Out port and theRF In port, or between the test port cables attached to the RF Out and RF Inports.

� CONNECT RF Out PORT to RF In PORT, Press ENTER.

The Site Master then measures the through path between the RF Out port andthe RF In port, or between the ends of the test port cables connected to theports.

SWEEP Displays the Sweep function soft key menu for the current operating mode.

SYS Displays the System menu softkey selections.

Up/DownArrow Key

Increments or decrements a parameter value or chooses an item from a listwhich can then be selected with the ENTER key.

NOTE:At turn on, before any other keys are pressed, the Up/Down arrow key may beused to adjust display contrast.

3-5


Soft KeysEach keypad key opens a set of soft key selections. Each of the soft keys has a correspond-ing soft key label area on the display. The label identifies the function of the soft key for thecurrent Mode selection.

NOTE:The AMPLITUDE and LIMIT keys are functionally identical.

Figures 3-3 through 3-8 show the soft key labels for each Mode selection.

3-6


F1

130

ON/OFF

ON/OFF

TOP OF

LIST

F2

259

SELECT

TRACE

EDIT

SEGMENT

PAGE

UP

SCROLL

SEGMENT

PAGE

DOWN

FULL

SPAN

BOTTOM

OF

LIST

SELECT

SEGMENT

DELETE

TRACE

517

BACK

BACK

DELETE

ALL

TRACES

BOTTOM

LIMIT

LIMIT

BEEP

TOPRESOLU-

TION

SINGLE

SWEEP

TRACE

MATH

TRACE

OVERLAY

FREQ/DIST AMPLITUDE SWEEP

Figure 3-3. Frequency Mode Soft Key Labels

3-7


MODE=POWER MONITOR:

SOFTKEYS: UNITS

REL

OFFSET

ZERO

Figure 3-4. Power Monitor Mode Soft Key Labels

3-8


FREQ/DIST

D2

DTF AID

MORE

D1

LOSS

CABLE

WINDOW

BACK

PROP

VEL

ON/OFF

EDIT

SEGMENT

SCROLL

SEGMENT

FULL

SPAN

SELECT

SEGMENT

BACK

BOTTOM

LIMIT

LIMIT

BEEP

TOP

AMPLITUDE

ON/OFF

TOP OF

LIST

SELECT

TRACE

PAGE

UP

PAGE

DOWN

BOTTOM

OF

LIST

DELETE

TRACE

BACK

DELETE

ALL

TRACES

RESOLU-

TION

SINGLE

SWEEP

TRACE

MATH

TRACE

OVERLAY

SWEEP

Figure 3-5. Distance to Fault Mode Soft Key Labels

3-9


M1

M2

M3

M4

ALL

OFF

MARKER

8

ON/OFF

ON/OFF

ON/OFF

ON/OFF

EDIT

EDIT

EDIT

EDITDELTA

M2 - M1

DELTA

M3 - M1

DELTA

M4 - M1

MARKER

TO

PEAK

MARKER

TO

PEAK

MARKER

TO

PEAK

MARKER

TO

PEAK

MARKER

TO

VALLEY

MARKER

TO

VALLEY

MARKER

TO

VALLEY

MARKER

TO

VALLEYBACK

BACK

BACK

BACK

Figure 3-6. Marker Key Soft Key Labels

3-10


ABC

DEF

GHI

JKL

MNO

PQR

STU

VWX

YZ

- . /

SPACE

BACK

SPACE

SAVE

DISPLAY

9

TOP

OF

LIST

PAGE

UP

PAGE

DOWN

BOTTOM

OF

LIST

DELETE

TRACE

DELETE

ALL

TRACES

RECALL

DISPLAY

0

Figure 3-7. Save Display and Recall Display Soft Key Menus

OPTIONS

CLOCK

SELF

TEST

STATUS

SYS

UNITS

PRINTER

FIXED

CW

CHANGE

DATE

FORMAT

BIAS

TEE

HOUR

MINUTE

MONTH

DAY

YEAR

BACK

Figure 3-8. SYS Key Soft Key Menus

FREQ/DIST Displays the frequency or distance menu depending on the measurement mode.

FrequencyMenu

Provides for setting sweep frequency end points when FREQ mode is selected.Selected frequency values may be changed using the keypad or Up/Down arrowkey.

� F1 — Opens the F1 parameter for data entry. This is the start value for thefrequency sweep. Press ENTER when data entry is complete.

� F2 — Opens the F2 parameter for data entry. This is the stop value for thefrequency sweep. Press ENTER when data entry is complete.

DistanceMenu

Provides for setting Distance to Fault parameters when a DTF mode is selected.Choosing DIST causes the soft keys, below, to be displayed and the correspond-ing values to be shown in the message area. Selected distance values may bechanged using the keypad or Up/Down arrow key.

� D1 — Opens the start distance (D1) parameter for data entry. This is the startvalue for the distance range. Press ENTER when data entry is complete.

� D2 — Opens the end distance (D2) parameter for data entry. This is the endvalue for the distance range. Press ENTER when data entry is complete.

� DTF AID — Provides interactive help to optimize DTF set up parameters.You will be prompted for system parameter values of maximum distance, fre-quency span, and propagation velocity.

� MORE — Selects the Distance Sub-Menu, detailed below.

DistanceSub-Menu

Provides for setting the cable loss and relative propagation velocity of the coax-ial cable. Selected values may be changed using the Up/Down arrow key or key-pad.

� LOSS — Opens the Cable Loss parameter for data entry. Enter the loss perfoot (or meter) for the type of transmission line being tested. Press ENTERwhen data entry is complete. (Range is 0.000 to 5.000 dB/m)

� PROP VEL (relative propagation velocity) — Opens the Propagation Veloc-ity parameter for data entry. Enter the propagation velocity for the type oftransmission line being tested. Press ENTER when data entry is complete.(Range is 0.010 to 1.000)

� CABLE — Opens a common coaxial cable folder and custom coaxial cablefolder. Select either folder and use the Up/Down arrow key and ENTER keyto make a selection. This feature provides a rapid means of setting both cableloss and propagation velocity. (Refer to Appendix A for a listing of commoncoaxial cables showing values for “Relative Propagation Velocity” and“Nominal Attenuation in dB/m @ 1000 MHz”.) The custom cable folder con-sists of up to 49 user-defined cable parameters downloaded via the Site Mas-ter Software Tools program.

� WINDOW — Opens a menu of FFT windowing types for the DTF calcula-tion. Scroll the menu using the Up/Down arrow key and make a selectionwith the ENTER key.

3-11


NOTE: Using windowing:The theoretical requirement for inverse FFT is for the data to extend from zerofrequency to infinity. Side lobes appear around a discontinuity due to the factthat the spectrum is cut off at a finite frequency. Windowing reduces the sidelobes by smoothing out the sharp transitions at the beginning and end of thefrequency sweep. As the side lobes are reduced the main lobe widens therebyreducing the resolution.

In situations where there may be a small discontinuity close to a large one, sidelobe reduction Windowing should be used. When distance resolution is criticalWindowing can be reduced. The types of Windowing in order of increasing sidelobe reduction are: rectangular, nominal side lobe, low side lobe, minimum sidelobe. Figures 3-9 thru 3-12, on pages 3-13 and 3-14, are examples of the typesof Windowing.

� BACK — Returns to the Distance Menu.

3-12


3-13


� � � �

� � � � � � � � � � � � � � � � � � � �

� �

� � �

� � �

� � �

� � �

� � �

� � �

� �

� �

� � �

� � � � � � � � � � � � � � �

� � � � � � � � � � � � � � � �

Figure 3-9. Rectangular Windowing Example

� � � � � � � � � � � � � � � �

� � � � � � � � � � �

� � � �

� � � � � � � � �

� �

� � �

� � �

� � �

� � �

� � �

� � �

� �

� �

� � �

� � � � � � � � � � � � � � �

Figure 3-10. Nominal Side Lobe Windowing Example

3-14


� � � � � � � � � � � � � � � �

� � � � � � � � � � �

� � � �

� � � � � � � � �

� �

� � �

� � �

� � �

� � �

� � �

� � �

� �

� �

� � �

� � � � � � � � � � � � � � �

Figure 3-11. Low Side Lobe Windowing Example

� � � � � � � � � � � � � � � �

� � � � � � � � � � � � � � � � � � � �

� � � �

� �

� � �

� � �

� � �

� � �

� � �

� � �

� �

� �

� � �

� � � � � � � � � � � � � � �

Figure 3-12. Minimum Side Lobe Windowing Example

AMPLITUDE Displays the amplitude or scale menu depending on the measurement mode.

AmplitudeMenu

Provides for changing the display scale and selects segment limit lines. Selectedvalues may be changed using the Up/Down arrow key or keypad.

Choosing AMPLITUDE in FREQ or DTF measurement modes causes the softkeys, below, to be displayed and the corresponding values to be shown in themessage area.

Pressing the LIMIT key on the keypad will also call up this menu.

� TOP — Opens the top parameter for data entry and provides for setting thetop scale value. Press ENTER when data entry is complete.

� BOTTOM — Opens the bottom parameter for data entry and provides for set-ting the bottom scale value. Press ENTER when data entry is complete.

� LIMIT — Opens the segment limit line selection table and the segment limitline sub menu (see below). Use the Up/Down arrow key to select one of thefive segment limit lines. Press the ENTER key to select.

� LIMIT BEEP — Toggles the Limit beep sound on or off. When on, the SiteMaster sounds a beep when the measured value is above any of the segmentlimit lines.

SegmentLimit LineSub-Menu

Provides for setting each of the five segment limit lines. Selected values may bechanged using the Up/Down arrow keys or the keypad.

� ON/OFF — Toggles the selected segment limit line on or off.

� EDIT SEGMENT — Opens the selected segment limit line parameter tablefor data entry. Use the Up/Down arrow and ENTER key to select the segmentlimit line parameter (start freq, start limit, stop freq, or stop limit) to edit.Use the Up/Down arrow keys or the keypad to edit the parameter value.Press the ENTER key when done editing, or press ESCAPE to revert to theprevious value.

� SCROLL SEGMENT — Opens the selected segment limit line for scrolling.Use the Up/Down arrow key to scroll the selected limit line up and down theamplitude display. Press the ENTER key when done scrolling, or press ES-CAPE to revert to the previous value.

� FULL SPAN — Span the selected segment limit line to the full frequencydisplay (F1 to F2).

NOTE:The Start and Stop limit values remain at the segment limit line value.

� SELECT SEGMENT — Opens the segment selection table. Use theUp/Down arrow key to select the current active segment limit line on the dis-play.

� BACK — Returns to the Amplitude (or Limit) menu.

SWEEP Displays the Sweep function soft key menu for the current operating mode.

3-15


Sweep Menu Provides for changing the display resolution, single or continuous sweep, andaccess to the Trace Math functions.

Choosing SWEEP in FREQ or DTF measurement modes causes the soft keysbelow to be displayed.

� RESOLUTION — Opens the display to change the resolution. Choose 130,259, or 517 data points. (Not active in DTF mode. In DTF mode, resolutioncan be adjusted through the DTF-AID table.)

� SINGLE SWEEP — Toggles the sweep between single sweep and continu-ous sweep. In single sweep mode, each sweep must be activated by theRUN/HOLD button.

� TRACE MATH — Opens up the Trace Math functions (trace-memory ortrace+memory) for comparison of the real time trace in the display with anyof the traces from memory. (Not available in DTF mode.)

� TRACE OVERLAY — Selects the Trace Overlay function and opens thetrace overlay sub-menu.

NOTE:The trace overlay function is valid only for traces in memory that have the samemeasurement mode, number of data points, and frequency or distance rangeas the currently displayed trace.

Trace OverlaySub-Menu

The trace overlay sub-menu is used to turn the trace overlay function on or offand for selecting the overlay trace from memory.

� ON/OFF — Toggles the trace overlay function on and off. If trace overlay iscurrently off, selecting on will bring up the trace memory selection table andsub-menu.

� SELECT TRACE — Opens the trace memory selection table and the SelectTrace sub-menu. Press ENTER to select a trace from the table. The SelectTrace sub-menu choices are:

� TOP OF LIST — Move the selection cursor to the top (first) memory lo-cation.

� PAGE UP — Move the selection cursor to the top of the previous tracememory location page. Each page contains 15 trace memory locations.

� PAGE DOWN — Move the selection cursor to the top of the next tracememory location page.

� BOTTOM OF LIST — Move the selection cursor to the bottom (last)memory location.

� DELETE TRACE — Delete the selected trace from memory. This optionis not available when using Trace Overlay.

� DELETE ALL TRACES — Delete all traces from memory. This option isnot available when using Trace Overlay.

� BACK — Return to the Sweep menu.

3-16


MARKER Choosing MARKER causes the soft keys, below, to be displayed and the corre-sponding values to be shown in the message area. Selected frequency marker ordistance marker values may be changed using the keypad or Up/Down arrowkey.

� M1 — Selects the M1 marker parameter and opens the Markers second levelmenu.




� ALL OFF — Turns all markers off.

Markers(second level)

Provides for turning the selected marker on and off and for setting marker val-ues. Selected frequency marker and distance marker values can be changed us-ing the keypad or Up/Down arrow key.

Choosing M1, M2, M3, or M4 in FREQ or DTF measurement modes causes thesoft keys, below, to be displayed and the corresponding values to be shown inthe message area.

� ON/OFF — Turns the selected marker on or off.

� EDIT — Opens the selected marker parameter for data entry. Press ENTERwhen data entry is complete or ESCAPE to restore the previous value.

� DELTA (Mx-M1) — Displays delta amplitude value for as well as delta fre-quency or distance for the selected marker with respect to the M1 marker.

� MARKER TO PEAK — Places the selected marker at the frequency or dis-tance with the maximum amplitude value.

� MARKER TO VALLEY — Places the selected marker at the frequency or dis-tance with the minimum amplitude value.

� BACK — Returns to the Main Markers Menu.

3-17


SYS Displays the System menu softkey selections.

� OPTIONS — Displays a second level of functions.

� CLOCK — Displays a second level of functions.

� SELF TEST — Start an instrument self test.

� STATUS — Displays instrument status.

OptionsSub-Menu

� UNITS — Select the unit of measurement (English or metric).

� PRINTER — Displays a menu of supported printers. Use the Up/Down arrowkey and ENTER key to make the selection.

� FIXED CW — Toggles the fixed CW function ON or OFF. When ON, sweeptime is reduced and immunity to RF interference is less. When OFF, (normalmode) the unit provides maximum RF interference immunity.

� CHANGE DATE FORMAT — Toggles the date format between MM/DD/YY,DD/MM/YY, and YY/MM/DD.

� BIAS TEE — Toggles Bias Tee on and off.

ClockSub-Menu

� HOUR — Enter the hour (0-23) using the Up/Down arrow key or the keypad.Press ENTER when data entry is complete or ESCAPE to restore the previousvalue.

� MINUTE — Enter the minute (0-59) using the Up/Down arrow key or thekeypad. Press ENTER when data entry is complete or ESCAPE to restore theprevious value.

� MONTH — Enter the month (1-12) using the Up/Down arrow key or the key-pad. Press ENTER when data entry is complete or ESCAPE to restore the pre-vious value.

� DAY — Enter the day using the Up/Down arrow key or the keypad. PressENTER when data entry is complete or ESCAPE to restore the previousvalue.

� YEAR — Enter the year (1997-2036) using the Up/Down arrow key or thekeypad. Press ENTER when data entry is complete or ESCAPE to restore theprevious value.

� BACK — Returns to the top-level SYS menu.

SAVEDISPLAY

Choosing Save Display activates the alphanumeric menu for trace storage. Usethe soft keys to enter a label for the saved trace.

For example, to save a display with the name “TRACE1” press the soft key forthe group that contains the letter “T” and then press the “T” soft key. Press thesoft key for the group that contains the letter “R” then press the “R” soft key.Continue for the rest of the letters. Use the number keys on the numeric keypadto enter numbers. Use the softkeys and keypad as necessary to enter the entirename, then press ENTER to complete the process.

The BACK SPACE softkey removes the currently highlighted letter in the tracename.

3-18


RECALLDISPLAY

Recalls a trace from memory for viewing or to be used as a trace overlay. Selec-tions are:

� TOP OF LIST — Move the selection cursor to the top (first) memory loca-tion.

� PAGE UP — Move the selection cursor to the top of the previous tracememory location page. Each page contains 15 trace memory locations.

� PAGE DOWN — Move the selection cursor to the top of the next trace mem-ory location page.

� BOTTOM OF LIST — Move the selection cursor to the bottom (last) memorylocation.

� DELETE TRACE — Delete the selected trace from memory. This option isnot available when using Trace Overlay.

� DELETE ALL TRACES — Delete all traces from memory. This option is notavailable when using Trace Overlay.

3-19


Power Monitor MenuSelecting POWER MONITOR from the Mode menu causes the soft keys, described below,to be displayed and the corresponding values shown in the message area.

� UNITS — Toggles between dBm and Watts.

� REL — Turns relative mode OFF, if currently ON. If relative mode is cur-rently OFF, turns it ON and causes the power level to be measured and savedas the base level. Subsequent measurements are then displayed relative to thissaved value. With units of dBm, relative mode displays dBr; with units ofWatts, relative mode displays % (percent).

� OFFSET — Turns Offset OFF, if currently ON. If Offset is currently OFF,turns it ON and opens the Offset parameter for data entry. Press ENTERwhen data entry is complete.Offset is the attenuation (in dB) inserted in the line between the DUT and theRF detector. The attenuation is added to the measured input level prior to dis-play.

� ZERO — Turns Zero OFF, if currently ON. If Zero is currently OFF, thissoftkey turns it ON and initiates collection of a series of power level samples,which are averaged and saved. This saved value is then subtracted from sub-sequent measurements prior to display.

3-20


PrintingPrinting is accomplished by selecting an available printer and pressing the print key as de-scribed below. Refer to the particular printer operating manual for specific printer settings.

Printing a Screen

Step 1. Connect the printer as shown in Figure 3-13.

Step 2. Obtain the desired measurement display

Step 3. Press the SYS key and the OPTIONS soft key (Figure 3-14) .

3-21


SEIKOPRINTER

HP 340DESKJET

SERIAL CABLE2000-1012

SERIAL-TO-PARALLELINTERFACE CABLE

2000-753

HOLDRUN

STARTCAL

AUTOSCALE

SAVESETUP

RECALLSETUP

LIMIT MARKER

SAVEDISPLAY

RECALLDISPLAY

PRINT


SYS

ENTER

CLEAR

ESCAPE

ONOFF

/

1 2

4

5 6

7 8

9 0

3

+-

.

Site Master S251B

625.0 2500.0

1384.45 MHz

2096.66 MHz

Figure 3-13. Site Master Printer Setup

OPTIONS

SYS

HOLDRUN

STARTCAL

AUTOSCALE

SAVESETUP

RECALLSETUP

LIMIT MARKER

SAVEDISPLAY

RECALLDISPLAY

PRINT


SYS

ENTER

CLEAR

ESCAPE

ONOFF

/

1 2

4

5 6

7 8

9 0

3

+-

.

Site Master S251B

625.0 2500.0

1384.45 MHz

2096.66 MHz

Figure 3-14. SYS Key and OPTIONS Soft Key

Step 4. Press the PRINTER soft key and select from the displayed menu of supportedprinters.

Step 5. Press the PRINT key. (Figure 3-15).

Printer Switch Settings

Set the switches, SW1, SW2, and SW3 on the Seiko DPU-414 thermal printer as follows:

Set the switches on the serial-to-parallel interface cable to all other printers as follows:

3-22


PRINTER

PRINT

HOLDRUN

STARTCAL

AUTOSCALE

SAVESETUP

RECALLSETUP

LIMIT MARKER

SAVEDISPLAY

RECALLDISPLAY

PRINT


SYS

ENTER

CLEAR

ESCAPE

ONOFF

/

1 2

4

5 6

7 8

9 0

3

+-

.

Site Master S251B

625.0 2500.0

1384.45 MHz

2096.66 MHz

Figure 3-15. PRINTER Soft Key and PRINT Key

Switch 1 2 3 4 5 6 7 8

SW1 OFF ON ON ON ON OFF ON ON

SW2 ON ON ON ON ON ON ON OFF

SW3 ON ON ON OFF OFF ON ON ON

SW1 SW2 SW3 SW4 SW5 SW6 SW7 SW8

OFF ON OFF OFF OFF OFF ON OFF

SymbolsTable 3-1 provides a listing of the symbols used as condition indicators on the LCD display.

Self TestAt turn-on, the Site Master runs through a series of quick checks to ensure the system isfunctioning properly. Note that the battery voltage and temperature are displayed in thelower left corner below the self test message. If the battery is low, or if the ambient temper-ature is not within the specified operational range, Self Test will fail. If Self Test fails andthe battery is fully charged and the Site Master is within the specified operating range, callyour Anritsu Service Center.

3-23


Icon Symbol

Site Master is in Hold for power conservation. To resume sweeping, pressthe RUN/HOLD key. After 10 minutes without a key press, the Site Masterwill automatically activate the power conservation mode.

Integrator Failure

Lock fail indication. Check battery. (If the Site Master fails to lock with afully charged battery, call your Anritsu Service Center.)

When calibration is performed, the Site Master stores the ambient temper-ature. If the temperature drifts outside the specified range, this indicatorwill flash. A recalibration at the current temperature is recommended.

Indicates the remaining charge on the battery. The inner white rectanglegrows longer as the battery charge depletes.

Indicates internal data processing.

Table 3-1. LCD Icon Symbols

HOLD

dx

T

�

Error CodesSelf Test Errors

A listing of Self Test Error messages is given in Table 3-2.

3-24


Error Message Description

BATTERY LOW Battery voltage is less than 9.5 volts. Charge battery. If condition per-sists, call your Anritsu Service Center.

EXTERNALPOWER LOW

External supply voltage is less than 12.5 volts. Call your Anritsu Ser-vice Center

PLL FAILED Phase-locked loops failed to lock. Charge battery. If condition persistswith a fully charged battery, call your Anritsu Service Center

INTEGRATORFAILED

Integration circuit could not charge to a valid level. Charge battery. Ifcondition persists with a fully charged battery, call your Anritsu Ser-vice Center.

EEPROM R/WFAILED

Non-volatile memory system has failed. Call your Anritsu ServiceCenter.

OUT OF TEMP.RANGE

Ambient temperature is not within the specified operating range. If thetemperature is within the specified operating range and the conditionpersists, call your Anritsu Service Center.

Note: A listing of current Anritsu service centers is given in Table 1-2 , page 1-8.

Table 3-2. Self Test Error Messages

Range Errors

A listing of Range Error messages is given in Table 3-3.

3-25



RANGEERROR:F1 > F2

The start (F1) frequency is greater than the stop (F2) frequency.

RANGEERROR:D1 > D2

The start (D1) distance is greater than the stop (D2) distance.

RANGEERROR:D2 >DMax=xx.x m (ft)

The stop distance (D2) exceeds the maximum unaliased range. Thisrange is determined by the frequency span, number of points,and relative propagation velocity:

MaximumUnaliased Rangedp V f

F F

�

�

( . ) ( ) ( )1 5 108

2 1(meters)

Where: dp is the number of data points (128, 256, or 512)Vf is the relative propagation velocityF2 is the stop frequency in HzF1 is the start frequency in HzMaximum Unaliased Range is in meters

Refer to Figure 3-16, page 3-27, for a plot of maximum range versusfrequency span.

RANGE ERROR:TOP<=BOTTOM

The SWR scale parameter top value is less than or equal to its bottomvalue.

RANGE ERROR:TOP>=BOTTOM

The RL scale parameter top value is greater than or equal to its bottomvalue.

CALINCOMPLETE

A complete open, short, and load calibration or a complete open,short, load isolation and thru calibration must be performed beforecalibration can be turned on.

DIST REQUIRESF1 < F2

Valid distance to fault plots require a non-zero frequency span.

DIST REQUIRESCAL

Distance-to-fault measurements do not provide usable data with CALOFF.

NO STOREDSWEEP AT THISLOCATION

Attempting to recall a display from a location that has not been previ-ously written to. That is, the location does not contain stored sweep.

USE OPTIONSMENU TOSELECT APRINTER

Attempting to print a display with no printer selected. Select a printer,then retry.

DISTANCE ANDCABLEINSERTION LOSSMODE AREINCOMPATIBLE

DTF measurements only display RL or SWR versus distance.

CANNOT ZERONO DETECTORINSTALLED

Attempting to perform a Power Monitor zero adjust function with noRF detector connected to the Site Master.

Table 3-3. Range Error Messages (1 of 2)

3-26



CANNOT ZEROINPUT SIGNALTOO HIGH

Attempting to perform a Power Monitor zero adjust function with aninput of greater than –20 dBm.

POWER MONITOROPTION NOTINSTALLED

Attempting to enter Power Monitor mode with no option 5 installed.

LIMIT SEGMENTSCANNOTOVERLAP

Segment limit lines are not allowed to overlap in frequency or dis-tance.

EITHER STOREDSWEEP IS NOTCOMPATIBLE, ORNO STOREDSWEEP AT THISLOCATION

Attempt to overlay a stored trace to the display from an empty loca-tion, or with a different measurement mode or setup than the currentdisplay.

VERTICAL LIMITSEGMENTS ARENOT ALLOWED

Segment limit line does not support vertical limit lines.

NO EXTERNALPOWER TO BAT-TERYRECHARGERPORT. BIAS TEECANNOT BE ACTI-VATED.

Attempting to use the Bias Tee option without external power appliedto the battery recharge port.

BIAS TEE OPTIONNOT INSTALLED

Attempting to use the Bias Tee option when the option has not beeninstalled.

Table 3-3. Range Error Messages (2 of 2)

3-27


Figure 3-16. Maximum Distance and Resolution vs Frequency Span

Using the Soft Carrying CaseThe soft carrying case has been designed such that the strap can be unsnapped to allow thecase to be easily oriented horizontally; thus allowing the Anritsu controls to be more easilyaccessed (Figure 3-17).

3-28


Figure 3-17. Using the Site Master Soft Carrying Case

Chapter 4Measurements

IntroductionThis chapter provides a description of the Site Master measurement functions and examplesof frequency domain, distance domain, and two-port (insertion gain or loss) measurements.

Measurement FunctionsSite Master operation is divided into four measurement modes: frequency domain, distancedomain, two-port, and power monitor.

� Frequency domain measurements consist of Return Loss (RL), Standing Wave Ratio(SWR), and Cable Loss (CL) made over a selectable frequency range. SWR and RL char-acterize the magnitude of reflections present in a device or transmission line. CL mea-surements display the insertion loss of a transmission line over frequency.

� Distance domain measurements—commonly known as distance-to-fault (DTF)—aremade over a selectable distance range. They include RL or SWR, but they also return in-formation that can help locate discontinuities in a transmission line. CL cannot be meas-ured in the distance domain.

� Two-port transmission gain or loss measurement is commonly known as S21 or throughmeasurement. The gain or loss measurement is made over a selectable frequency rangeand the magnitude in dB characterizes the performance of the device under test. Gain andloss measurement includes Tower Mount Amplifier (TMA) verification, an-tenna-to-antenna isolation, and duplexer filter rejection and isolation.

� Power monitor measurements can be either absolute or relative to some base power level,and can be displayed in either dBm or Watts. To allow measurement and display ofpower levels above the unit's specified input, the user may attenuate the signal and enterthe corresponding offset. The offset is added to the measured input power prior to dis-play. Finally, a zero adjust function is provided to allow subtraction of an inherent“noise” level prior to display.

CAUTION: The measurement system MUST be calibrated at the ambient tem-perature prior to making a measurement. You must calibrate when the setupfrequency is changed. Calibrations are stored with each of the setups.

It is recommended that the appropriate calibration, (open-short-load oropen-short-load-thru) be performed on the Site Master prior to measurements. This givesconfidence to the operator that the measurement performed is accurate and system uncer-tainties have been minimized.

4-1

4

Power On ProcedureThe Site Master is designed specifically for field environments and applications requiringmobility. As such, it is a lightweight, handheld, battery operated unit which can be easilycarried to any location, and is capable of up to 2.5 hours of continuous operation from afully charged battery. Built-in energy conservation features allow battery life to be extendedover an eight-hour workday. The Site Master can also be powered by a 12.5 Vdc externalsource. The external source can be either the Anritsu AC-DC Adapter (P/N 40-115) or 12.5Vdc Automotive Cigarette Lighter Adapter (P/N 806-62) provided.

Step 1. Press the ON/OFF key.

The Site Master takes about five seconds to perform a series of self-diagnosticand adjustment routines. At completion, the screen displays the Anritsu logo, themodel number, and the version of firmware installed.

Step 2. Press ENTER to continue, or wait for one minute.

The Site Master is now ready for operation.

Calibration ProcedureThe following procedure provides the steps necessary to perform Open-Short-Load (OSL)and Open-Short-Load-Thru (OSLT) calibrations. Calibration is done with the maximum517 data points and is valid for 130 and 259 data point settings (default is 259). Refer toFigure 4-1 for setup.

Step 1. Press the MODE key.

Step 2. Use the Up/Down arrow key to scroll to FREQ - SWR or RETURN LOSS forOSL calibration; or scroll to INSERTION LOSS (+6 dBm) or INSERTION GAIN(–30 dBm) measurement mode for OSLT calibration..

4-2

Chapter 4 Measurements

HOLDRUN

STARTCAL

AUTOSCALE

SAVESETUP

RECALLSETUP

LIMIT MARKER

SAVEDISPLAY

RECALLDISPLAY

PRINT


SYS

ENTER

CLEAR

ESCAPE

ONOFF

/

1 2

4

5 6

7 8

9 0

3

+-

.

Site Master S251B

625.0 2500.0

1384.45 MHz

2096.66 MHz

OPEN

LOAD

LOAD SHORT CALIBRATION

RF OUT TEST PORT

RF IN TEST PORT

TEST PORT CABLE (OPTIONAL)

TEST PORT CABLE (OPTIONAL)

Figure 4-1. One-port Measurement Calibration Setup

Step 3. Press the ENTER key to select the measurement mode.

Selecting the Frequency Range

The following procedure selects the frequency range for the calibration.

Step 4. Press the FREQ/DIST key.

Step 5. Press the F1 soft key.

Step 6. Enter 6, 2, 5 or a user-defined frequency using the key pad or the Up/Down ar-row key.

Step 7. Press ENTER to set F1 to 625 MHz or the user-defined frequency.


Step 9. Enter 2, 5, 0, 0 or a user-defined frequency using the keypad or the Up/Down ar-row key.

Step 10. Press ENTER to set F2 to 2500 MHz or the user-defined frequency.

Step 11. Check that the FREQ (MHz) scale in the display area indicates the new fre-quency start and stop values (for example: F1 = 625 MHz, F2 = 2500 MHz).

Performing a Calibration

The following procedures detail how to perform the calibrations. Steps 12 through 15 de-scribe OSL calibration, while steps 16 and 17 apply only to OSLT calibration.

Step 12. Press the START CAL key. The message “CONNECT OPEN TO RF OUTPORT” will appear in the display.

Step 13. Connect the calibrated Open and press the ENTER key. The messages “Mea-suring OPEN” and “CONNECT SHORT TO RF OUT” will appear.

Step 14. Remove the Open, connect the calibrated Short and press the ENTER key. Themessages “MEASURING SHORT” and “CONNECT LOAD TO RF OUT” willappear.

4-3


HOLDRUN

STARTCAL

AUTOSCALE

SAVESETUP

RECALLSETUP

LIMIT MARKER

SAVEDISPLAY

RECALLDISPLAY

PRINT


SYS

ENTER

CLEAR

ESCAPE

ONOFF

/

1 2

4

5 6

7 8

9 0

3

+-

.

Site Master S251B

625.0 2500.0

1384.45 MHz

2096.66 MHz

LOAD

OPEN

LOAD

SHORT

RF OUT TEST PORT

RF IN TEST PORT

TEST PORT CABLE(OPTIONAL)


Figure 4-2. Two-Port Measurement Calibration Setup

Step 15. Remove the Short, connect the calibrated Load and press the ENTER key. Themessage “MEASURING LOAD ” will appear.

NOTE:For OSLT calibration, the messages “MEASURING LOAD” and “CONNECTLOADS TO RF OUT AND RF IN PORTS” will appear.

Step 16. Connect the second calibrated load to the RF In test port and press the ENTERkey. The messages “MEASURING ISOLATION” and “CONNECT RF OUTPORT TO RF IN PORT” will appear.

Step 17. Remove both loads, connect an adapter and/or a cable from the RF Out test portto the RF In test port and press ENTER.

Step 18. Verify that the calibration has been properly performed by checking that themessage “CAL ON” is displayed in the upper left corner of the display.

Setting the Amplitude Scale

The following procedure sets the amplitude scale.

Step 1. Press the AMPLITUDE or LIMIT key to call up the Scale menu.

Step 2. In SWR mode, press the TOP soft key and enter 1, ., 1 using the key pad or theUp/Down arrow key, and press ENTER. (In Return Loss mode, enter 0; in Inser-tion Gain/Loss mode, enter 100.)

Step 3. In SWR mode, press the BOTTOM soft key and enter 1 using the key pad or theUp/Down arrow key, and press ENTER. (In Return Loss mode, enter 54; in In-sertion Gain/Loss mode, enter –120.)

NOTE:Figure 4-3 and 4-4 show the typical responses of a valid OSL calibration with aload attached to the test port with 517 data points.Figures 4-5, 4-6, 4-7 and 4-8 show typical responses of a valid OSLT calibra-tion with loads attached to the test port and with the RF Out test port attachedto the RF In test port.To change the number of data points, press the SWEEP key, followed by theRESOLUTION soft key. Select 130, 259, or 517 data points.

Saving the Setup

The following procedure can be used to save a setup and calibration in memory.

Step 1. Press the SAVE SETUP key.

Step 2. Use the key pad or the Up/Down arrow key to select a memory location (1 - 10),then press ENTER.

Recalling a Setup

The following procedure recalls a setup from memory.

Step 1. Press the RECALL SETUP key.

4-4


Step 2. Select the desired setup using the Up/Down arrow key and press ENTER to re-call the display.

Saving a Display to Memory

The following procedure saves a display to memory.

Step 1. Press the SAVE DISPLAY key to activate the alphanumeric menu for trace stor-age.

Step 2. Use the soft keys to enter a label for the saved trace.

For example, to save a display with the name “TX1 RETURN LOSS” press thesoft key group that contains the letter “T” then press the “T” soft key. Press thesoft key group that contains the letter “X” then press the “X” soft key. Press thenumber “1” key on the numeric keypad. Use the softkeys and keypad as neces-sary to enter the entire name, then press ENTER to complete the process.

NOTE: More than one trace can be saved using the same alphanumeric name,as traces are stored chronologically, using the time/date stamp.

Recalling a Display From Memory

The following procedure recalls a previously saved display from memory.

Step 1. Press the RECALL DISPLAY key.

Step 2. Select the desired display using the Up/Down arrow key and press ENTER to re-call the display.

4-5


Figure 4-4. SWR Measurement Mode Calibration Results

4-6


Figure 4-5. Insertion Loss Mode Calibration Results (Loads at RF Out and RF In)

4-7


Figure 4-6. Insertion Loss Mode Calibration Results (Loads at RF Out and RF In)

Figure 4-7. Insertion Gain Mode Calibration Results (RF Out connected to RF In)

NOTES: For best calibration results–compensation for all measurement systemuncertainties–ensure that the Open/Short/Load is at the end of the test port oroptional extension cable; that is, at the same point as the antenna or device tobe tested will be connected.For best results, use a phase stable Test Port Extension cable. In a typical lab-oratory cable, bending subsequent to the calibration will cause uncompensatedphase reflections inside the cable. Cables that are not phase stable may causemeasurement errors that become more pronounced as the test frequency in-creases.

4-8


Figure 4-8. Insertion Gain Mode Calibration Results (RF Out Connected to RF In)

SWR (Return Loss) and Cable Loss MeasurementThe following frequency domain measurement is an example of a Standing Wave Ratio (orReturn Loss) and Cable Loss measurement made over a selectable frequency range. Thismeasurement example determines the quality and loss of the test port cable or device undertest.

Required Equipment

� Site Master Model S251B

� Precision N (m) Open/Short, Anritsu 22N50 andPrecision N (m) Load, Anritsu SM/PLorPrecision N (m) Open/Short/Load, Anritsu OSLN50LF

� N (m) - N (f) Test Port Extension Cable, Anritsu 15NNF50-1.5A

Device-Under-Test Specification

Procedure

Step 1. Press the ON/OFF key on the Site Master.

Selecting the Measurement Mode


Step 3. Use the Up/Down arrow key to scroll to FREQ-SWR or FREQ-RETURN LOSS.

Step 4. Press the ENTER key to select Frequency SWR or Return Loss measurementmode.


Step 5. Press the FREQ/DIST key.


Step 7. Enter 6, 2, 5 using the key pad or the Up/Down arrow key.

Step 8. Press ENTER to set F1 to 625 MHz.


Step 10. Enter 2, 5, 0, 0 using the keypad or the Up/Down arrow key.

Step 11. Press ENTER to set F2 to 2500 MHz.

Step 12. Check that the FREQ (MHz) scale in the display area indicates the new fre-quency start and stop values (F1 = 625 MHz, F2 = 2500 MHz).

4-9


Type Typical Loss @1.5m Vg Return Loss SWR

15NNF50-1.5A

0.4 dB @ 625 MHz0.5 dB @ 800 MHz0.6 dB @ 1000 MHz0.7 dB @ 1500 MHz0.8 dB @ 2000 MHz0.9 dB @ 2500 MHz

0.86 � 21 dB 1.20


Step 13. Press the START CAL key. Follow the instructions that appear in the messagearea.

Step 14. Connect the Open, Short, and Load component to the test port and press theENTER key as prompted after connecting each component.

Refer to the “Performing a Calibration” procedure on page 4-3 for detailed cali-bration steps.

NOTES:For best calibration results — compensation for all measurement system uncer-tainties — ensure that the Open/Short/Load is at the end of the test port or op-tional extension cable; that is, at the same point that you will connect theantenna or device to be tested.

For best results, use a phase stable Test Port Extension Cable (see OptionalAccessories). If you use a typical laboratory cable to extend the Anritsu test portto the device-under-test, cable bending subsequent to the Open/Short/Load cal-ibration will cause uncompensated phase reflections inside the cable. Thus, ca-bles which are not phase stable may cause measurement errors that are morepronounced as the test frequency increases.

For optimum calibration, Anritsu recommends using precision calibration com-ponents.

4-10


SWR or Return Loss Measurement

Step 15. Disconnect the Load and connect the test port extension cable to the Site Mastertest port.

Step 16. Connect the Load to the open end of the test port extension cable as shown inFigure 4-9.

Step 17. Observe the displayed measurement. Figures 4-10 and 4-11 show typical SWRand Return Loss measurements with markers and limit line set.

Set the Amplitude Scale and Limit Line

The following procedure sets the top and bottom scale display.

Step 18. Press the AMPLITUDE or LIMIT key to call up the Scale Menu.

Step 19. In SWR mode, press the TOP soft key and enter 1, ., 3 using the keypad orUp/Down arrow key. Press ENTER to set the top scale. (In Return Loss mode,enter 0.)

Step 20. In SWR mode, press the BOTTOM soft key and enter 1 using the keypad orUp/Down arrow key. Press ENTER to set the bottom scale. (In Return Lossmode, enter 5, 4.)

Step 21. Press the LIMIT soft key to activate the segment limit line table.

Step 22. Use the Up/Down arrow key to scroll to segment #1 and press the EDITSEGMENT soft key to change the parameter values for segment #1.

Step 23. Use the Up/Down arrow key to scroll to the START FREQ parameter and pressENTER to edit the value.

4-11


LOAD

SHORT

MEASUREMENT

RFOUT/REFLECTIONTEST PORT

OPEN

LOAD

SHORT CALIBRATION

HOLDRUN

STARTCAL

AUTOSCALE

SAVESETUP

RECALLSETUP

LIMIT MARKER

SAVEDISPLAY

RECALLDISPLAY

PRINT


SYS

ENTER

CLEAR

ESCAPE

ONOFF

/

1 2

4

5 6

7 8

9 0

3

+-

.

Site Master S251B

625.0 2500.0

1384.45 MHz

2096.66 MHz

Figure 4-9. Cable Measurement Test Setup

Step 24. Enter 6, 2, 5 using the key pad or the Up/Down arrow key. Press ENTER to setthe Start Frequency to 625 MHz.

Step 25. Use the Up/Down arrow key to scroll to the START FREQ LIMIT parameter andpress ENTER to edit the value.

Step 26. For FREQ-SWR, enter 1, ., 1, 2. For FREQ-RETURN LOSS, enter 2, 5. PressENTER to set the Start Frequency Limit value.

Step 27. Use the Up/Down arrow key to scroll to the STOP FREQ parameter and pressENTER to edit the value.

Step 28. Enter 2, 5, 0, 0 using the key pad or the Up/Down arrow key. Press ENTER toset the Stop Frequency to 2500 MHz.

Step 29. Use the Up/Down arrow key to scroll to the STOP FREQ LIMIT parameter andpress ENTER to edit the value.

Step 30. For FREQ-SWR, enter 1, ., 2. For FREQ-RETURN LOSS, enter 2, 1. PressENTER to set the Stop Frequency Limit value.

Step 31. Press ENTER at OK to accept the values and activate the Segment 1 limit line.

NOTE:Alternatively, if the Start and Stop frequencies are the full span of the Site Mas-ter, simply edit the Start and Stop frequency Limits and select the FULL SPANsoft key. Press ENTER at OK to accept and activate the Segment 1 limit line.

4-12


Setting the Markers

The following procedure sets the markers.

Step 32. Press the MARKER key to call up the Markers menu.

Step 33. Press the M1 soft key to select the M1 marker function. Press the EDIT soft keyand enter 8, 2, 4 using the keypad or Up/Down arrow key. Press ENTER to setM1 to 824 MHz. (Note: pressing the ON/OFF soft key activates or deactivatesthe M1 marker function.)

Step 34. Press the BACK soft key to return to the Markers menu.

Step 35. Repeat steps 33 and 34 for markers M2, M3, and M4. Set M2 to 960 MHz, M3to 1710 MHz, and M4 to 1990 MHz. Figures 4-10 and 4-11 depict the SWR andReturn Loss measurements).

NOTE:Refer to page 4-4 for instructions on saving and recalling a setup or display.

4-13


Figure 4-10. Cable SWR Measurement Results

Figure 4-11. Cable Return Loss Measurement Results

Cable Loss MeasurementThe following frequency domain measurement is an example of a Cable Loss measurementmade over a selectable frequency range following the Marker setting steps 32 to 35.

NOTE:If SWR/Return Loss measurement has not been done, calibration must be per-formed before determining the cable loss.

Step 36. Disconnect the load from the end of the cable and replace it with a short.


Step 38. Use the Up/Down arrow key to scroll to CABLE LOSS - ONE PORT.

Step 39. Press ENTER to select Cable Loss measurement mode.


The following procedure sets the scale display.

Step 40. Press the AMPLITUDE key to call up the Scale Menu.

Step 41. Press the TOP soft key and enter 0 using the keypad or Up/Down arrow key.Press ENTER to set the top scale.

Step 42. Press the BOTTOM soft key and enter 1 using the keypad or Up/Down arrowkey. Press ENTER to set the bottom scale.

NOTE:An alternative method of setting the amplitude scale is to use the AUTO SCALEkey.

Setting the Segment Limit LInes

The following procedure sets the segment limit lines.

Step 43. Press the AMPLITUDE or LIMIT key to call up the Segment Limit Line menu.

Step 44. Press the LIMIT soft key to activate the segment limit line table.

Step 45. Use the Up/Down arrow key to scroll to segment #1 and press the EDIT SEG-MENT soft key to change the parameter values for segment #1.

Step 46. Use the Up/Down arrow key to scroll to the START FREQ parameter and pressENTER to edit the value.

Step 47. Enter 8, 2, 4 using the key pad or the Up/Down arrow key. Press ENTER to setthe Start Frequency to 824 MHz.

Step 48. Use the Up/Down arrow key to scroll to the START FREQ LIMIT parameter andpress ENTER to edit the value.

Step 49. Enter ., 5. Press ENTER to set the Start Frequency Limit value.

Step 50. Use the Up/Down arrow key to scroll to the STOP FREQ parameter and pressENTER to edit the value.

4-14


Step 51. Enter 9, 6, 0 using the key pad or the Up/Down arrow key. Press ENTER to setthe Stop Frequency to 960 MHz.

Step 52. Use the Up/Down arrow key to scroll to the STOP FREQ LIMIT parameter andpress ENTER to edit the value.

Step 53. Enter ., 5, 5. Press ENTER to set the Stop Frequency Limit value.

Step 54. Press ENTER at OK to accept the values and activate the Segment 1 limit line.

Step 55. Press the SELECT SEGMENT soft key and use the Up/Down arrow key to scrollto segment #2. Press the EDIT SEGMENT soft key to change the parameter val-ues for segment #2.

Step 56. Repeat the above steps as necessary to set the Segment #2 Start Frequency to1710 MHz, Start Limit to 0.70, Stop Frequency to 1990 MHz, and Stop Limit to0.8. Figure 4-12 depicts a typical cable loss measurement.


4-15


Figure 4-12. Cable Loss Measurement Results

DTF MeasurementThe following distance domain measurement is an example of a Distance-to-Fault (DTF)measurement over a selectable distance range.

Required Equipment


� Precision Open/Short, Anritsu 22N50 andPrecision Load, Anritsu SM/PLorPrecision Open/Short/Load, Anritsu OSLN50LF

� Test Port Extension Cable, Anritsu 15NNF50-1.5A


Procedure


Selecting the Measurement Mode


Step 3. Use the Up/Down arrow key to scroll to DTF-SWR or DTF-RETURN LOSS.

Step 4. Press the ENTER key to select DTF-SWR or Return Loss measurement mode. Ifthe Site Master has not been calibrated (CAL OFF displayed in the upper left ofthe display), the DTF AID parameter table will appear.

NOTE: Where CAL ON is indicated on the Site Master, pressing the DTF AIDsoft key will activate the DTF parameter table. However, distance and cabletype (propagation velocity and loss) have not been optimized. F1 and F2 areset by “CAL ON” setup. DTF measurement is valid for D2 � Dmax (as defined byF2 and F1).The number of data points (resolution) will automatically adjust according to thelength of D2.

Step 5. Use the Up/Down arrow key to scroll to D2, then press ENTER to select the ca-ble length.

Step 6. Enter 2 using the keypad or the Up/Down arrow key. Press ENTER to set D2 to2.0 meters.

4-16


Type Typical Loss @1.5m VgReturnLoss

SWR

15NNF50-1.5A

0.4 dB @ 625 MHz0.5 dB @ 800 MHz0.6 dB @ 1000 MHz0.7 dB @ 1500 MHz0.8 dB @ 2000 MHz0.9 dB @ 2500 MHz

0.86 � 21 dB 1.20

Step 7. Use the Up/Down arrow key to scroll to F1, then press ENTER to select the startfrequency F1.

Step 8. Enter 6, 2, 5 using the keypad or the Up/Down arrow key. Press ENTER to setF1 to 625 MHz.

Step 9. Use the Up/Down arrow key to scroll to F2, then press ENTER to select the startfrequency F2.

Step 10. Enter 2, 5, 0, 0 using the keypad or the Up/Down arrow key. Press ENTER to setF2 to 2500 MHz.

Step 11. Scroll to PROP VEL and press ENTER to select Propagation Velocityparameters.

NOTE:Propagation velocity and cable loss can be accessed by selecting CABLEFUNCTION from the DTF AID parameter table.

Step 12. Enter ., 8, 6 and press ENTER to set the Propagation Velocity to 0.86.

Step 13. Press ENTER to start the calibration.

NOTE:If the calibration is valid, scroll to CALIBRATION VALID–CONTINUE and pressENTER. If calibration is necessary, proceed to the calibration instructions.


This procedure is used to perform a calibration.

Step 14. At the Perform Calibration menu, follow the instructions on the display to con-nect the respective calibration components to the Site Master test port. (Refer tothe calibration procedure on page 4-3.)

NOTES:For best calibration results — compensation for all measurement system uncer-tainties — ensure that the Open/Short/Load is at the end of the test port or op-tional extension cable; that is, at the same point that you will connect theantenna or device to be tested.

For best results, use a phase stable Test Port Extension Cable (see OptionalAccessories). If you use a typical laboratory cable to extend the Anritsu test portto the device-under-test, cable bending subsequent to the Open/Short/Load cal-ibration will cause uncompensated phase reflections inside the cable. Thus, ca-bles which are not phase stable may cause measurement errors that are morepronounced as the test frequency increases.

For optimum calibration, Anritsu recommends using precision calibration com-ponents.

4-17


DTF Measurement (Determining the Length of the Cable)

Step 15. Disconnect the Load and connect the test port extension cable to the Site Mastertest port.

Step 16. Connect the Short to the open end of the test port extension cable.

NOTE:The number of data points displayed can be changed by selecting RES in theDTF AID table.


Step 17. Press the AMPLITUDE or LIMIT key to call up the Scale Menu.Optional: Press the AUTO SCALE key to optimize the amplitude scale.

Step 18. In SWR mode, press the TOP soft key and enter 3, 0 using the keypad orUp/Down arrow key. Press ENTER to set the top scale. (In Return Loss mode,enter 0.)

Step 19. In SWR mode, press the BOTTOM soft key and enter 1 using the keypad orUp/Down arrow key. Press ENTER to set the bottom scale. (In Return Lossmode, enter 54.)

Setting the Marker


Step 21. Press the M1 soft key to select the M1 marker function. (Note: pressing theON/OFF soft key activates or deactivates the M1 marker function.)

Step 22. Press the MARKER TO PEAK soft key to find the cable length.

Step 23. Press the BACK soft key or the ESCAPE key to return to the previous menu.Figures 4-13 and 4-14 show cable length displays in SWR and Return Lossmodes.


4-18


4-19


Figure 4-13. DTF - SWR Measurement Results (cable length)

Figure 4-14. DTF - RETURN LOSS Measurement Results (cable length)

DTF Measurement (Determining the quality of the cable.)

NOTE:If cable length measurement has not been done, calibration must be done be-fore determining the quality of the cable (steps 1-15).

Step 24. Disconnect the Short and connect the Load to the test port extension cable


Step 25. Press the AMPLITUDE or LIMIT key to call up the Scale Menu..Optional: Press the AUTO SCALE key to optimize the amplitude scale.

Step 26. In SWR mode, press the TOP soft key and enter 1, ., 0, 5 using the keypad orUp/Down arrow key. Press ENTER to set the top scale. (In Return Loss mode,enter 20.)

Step 27. In SWR mode, press the BOTTOM soft key and enter 1 using the keypad orUp/Down arrow key. Press ENTER to set the bottom scale. (In Return Lossmode, enter 54.)

Setting the Markers


Step 29. Press the M2 soft key to select the M2 marker function. (Note: pressing theON/OFF soft key activates or deactivates the M2 marker function.)

Step 30. Press the MARKER TO PEAK soft key to find the maximum SWR or ReturnLoss reading. (See Figures 4-15 and 4-16.)


4-20


4-21


Figure 4-15. DTF - SWR Measurement Results (cable quality)

Figure 4-16. DTF - RETURN LOSS Measurement Results (cable quality)

Insertion Gain (Amplifier) MeasurementThe following frequency domain measurement is an example of a Insertion Gain (Ampli-fier) measurement over a selectable frequency range. Insertion loss measurements, such asantenna-to-antenna isolation and filter rejection (isolation), follow the same procedures asbelow except in Insertion Loss (+6 dBm) measurement mode.

Required Equipment


� (2) Precision 7/16(f) Open/Short/Load, Anritsu 2000-768

� (2) N (m) to 7/16 (m) Test Port Extension Cables, Anritsu 15NNF50-1.5A or(2) N (m) to N (f) Test Port Cables and (2) N (m) to 7/16 (m) adaptors (510-92)

� 7/16 (f) Adapter, Anritsu 510-97

� Tower Mount Amplifier, Ericsson A57001HQ85 or equivalent


Procedure


Selecting the Measurement

Step 2. Press the MODE soft key.

Step 3. Use the Up/Down Arrow key to scroll to INSERTION GAIN (–30 dBm). Pressthe ENTER key to select insertion gain measurement mode.


Step 4. Press the FREQ soft key.


Step 6. Enter 1, 8, 0, 0 using the keypad or Up/Down Arrow key. Press ENTER to setF1 to 1800 MHz.


Step 8. Enter 2, 1 ,0, 0 using the keypad or Up/Down Arrow key. Press ENTER to set F2to 2100 MHz.


Step 9. Connect the test port extension cables to the RF In and RF Out test ports asshown in Figure 4-17.

Step 10. Press the START CAL key. Follow the instructions in the message area.

4-22


Type Frequency Range Gain (Typical)

TMA 1885 to 1990 MHz1965 to 1990 MHz

+12 dB–0.5 dB

Step 11. Connect the Open, Short, Loads, and through adapter to the test port extensioncable and press the ENTER key as prompted. Refer to the Calibration Procedureearlier in this chapter for detailed calibration instructions.

NOTE:The number of data points displayed can be changed by selecting RES in theDTF AID table.

When the calibration is complete the results should be similar to those shown in Figure4-18.

4-23


HOLDRUN

STARTCAL

AUTOSCALE

SAVESETUP

RECALLSETUP

LIMIT MARKER

SAVEDISPLAY

RECALLDISPLAY

PRINT


SYS

ENTER

CLEAR

ESCAPE

ONOFF

/

1 2

4

5 6

7 8

9 0

3

+-

.

Site Master S251B

625.0 2500.0

1384.45 MHz

2096.66 MHz

LOAD

OPEN

LOAD

SHORT

RF OUT TEST PORT

RF IN TEST PORT



Figure 4-17. Two-Port Measurement Calibration Setup

Figure 4-18. Two-Port Measurement Calibration Results

Amplifier Gain Measurement

Step 12. Disconnect the 7/16(f) adapter. The resulting display should be similar to Figure4-19

Step 13. Connect the amplifier to the test port extension cables as shown in Figure 4-20.

Setting the Markers


Step 15. Press the M1 soft key to select the M1 marker function.

4-24


Figure 4-19. Measurement Display Before Amplifier Connection

AntPCSAmp

Tx\RF

HOLDRUN

STARTCAL

AUTOSCALE

SAVESETUP

RECALLSETUP

LIMIT MARKER

SAVEDISPLAY

RECALLDISPLAY

PRINT


SYS

ENTER

CLEAR

ESCAPE

ONOFF

/

1 2

4

5 6

7 8

9 0

3

+-

.

Site Master S251B

625.0 2500.0

1384.45 MHz

2096.66 MHz

RF OUT TEST PORT

RF IN TEST PORT



Figure 4-20. Amplifier Gain Measurement Setup

Step 16. Press the EDIT soft key and enter 1, 8, 8, 5 using the keypad or Up/Down Arrowkey. Press ENTER to set M1 to 1885 MHz.

NOTE:Pressing the ON/OFF soft key activates or deactivates the M1 marker function.

Step 17. Press the BACK soft key to return to the Markers menu.

Step 18. Repeat the above steps for markers M2, M3, and M4. Set M2 to 1910 MHz, M3to 1965 MHz, and M4 to 1990 MHz.

Observe the bypass condition (Figure 4-21).

Activating the Bias Tee

Step 19. Press the SYS key.

Step 20. Press the OPTIONS soft key, then the BIAS TEE soft key to activate the BiasTee.

NOTE:The Site Master must have Option 10A installed and the battery charger mustbe connected for the bias tee to activate.


Step 21. Press the AMPLITUDE or LIMIT key to call up the Scale menu.

Step 22. Press the TOP soft key and enter 1, 5 using the keypad or Up/Down arrow key.Press ENTER to set the top scale to 15.

4-25


Figure 4-21. Measurement Display Showing Bypass Condition

Step 23. Press the BOTTOM soft key and enter 9, 0 – using the keypad or Up/Down ar-row key. Press ENTER to set the bottom scale to –90.Observe the display of amplifier gain performance (Figure 4-22).

NOTE:Alternatively, press the AUTO SCALE key to set the top and bottom displayscale.

Step 24. Press the MARKER key to display the marker value.


4-26


Figure 4-22. Measurement Display of Amplifier Gain

Making Power MeasurementsPower measurement is accomplished using a broadband (1 MHz to 3000 MHz) RF detector,P/N 5400-71N50. The power monitor displays measured power in dBm or Watts.

Entering Power Monitor Mode


Step 2. Use the Up/Down arrow key to scroll to POWER MONITOR. Press ENTER toselect power monitor mode.

Zeroing the Power Monitor

Step 3. With no power applied to the DUT, press the ZERO soft key from the Powermenu. Wait a few seconds while the Site Master accumulates samples of the qui-escent power level. When complete, ZERO ADJ: ON is displayed in the messagearea.

Measuring High Input Power Levels

Step 4. Insert an attenuator between the DUT and the RF detector, sufficient to insurethat the input power to the Site Master is no greater the 20 dBm.

Step 5. Press the OFFSET soft key.

Step 6. Enter the attenuation in dB using the keypad. Press ENTER to complete the en-try. The message area will show OFFSET is ON along with the entered value indB.

Displaying Power in dBm and Watts

Step 7. Press the UNITS soft key to display power in Watts.

Displaying Relative Power

Step 8. With the desired base power level input to the Site Master, press the REL softkey. The message area will show REL: ON and the power reading will indicate100%.

Step 9. Press the UNITS soft key to display power in dBm. Since REL is ON, the powerreading will be in dBr, relative to the base power level.

4-27/4-28


Chapter 5Software ToolsProgram

DescriptionThe Site Master Software Tools program provides the means for transferring the measuredtrace, along with any applied markers and/or a limit, to the screen of an MS-DOS basedpersonal computer (PC) running Windows 95/98/NT.

RequirementsThe Site Master Software Tools program is a standard Windows program and will run onany computer that will run Windows 95/98/NT. Typically, this means having a PC with thefollowing characteristics:

� Pentium microprocessor (100 MHz or better, recommended)

� Microsoft Windows 95/98/NT

� 32 MBytes of memory, minimum

� Approximately 15 MBytes of available hard drive space

Communication Port SettingThe Site Master Software Tools communicates with the Site Master through a standardCOM port on the PC. It is important that your Windows COM port settings conform to theactual hardware settings. Since various add-in devices such as sound cards, modems, andnetwork cards use IRQ (Interrupts), it is possible that your computer has non-standardCOM port settings. Please consult your computer vendor for COM port address and IRQ in-formation.

Changing COM Port Settings–Windows 95/98/NT

Step 1. Open the Windows Control Panel.

Step 2. Double click on the SYSTEM icon. The System Properties window appears.

Step 3. Select Device Manager. The Device List appears.

Step 4. Double click on the item Ports (COM & LPT) in the device list.

Step 5. Double click on the communications port you want to set. The CommunicationsPort Properties window appears.

NOTE:If Windows doesn't show any available COM Ports, consult your computermanufacturer.

5-1

5

Step 6. Choose Port Settings, then change to the following settings if necessary.Baud Rate: 9600Data Bits: 8Parity: NoneStop Bits: 1Flow Control: None

Step 7. Choose Resource and verify the COM Port Base Address and IRQ. Click OKwhen done.

Step 8. Click OK again to close the System Properties window.

Note:If you changed the COM Port Base Address and/or IRQ, you will need to restartWindows.

5-2

Chapter 5 Software Tools Program

Figure 5-1. Windows 95/98/NT COM Port Setting Dialog Boxes

Software InstallationThe Site Master Software Tools program is a conventional Microsoft Windows program.Installation is similar to all other such programs. For users new to Windows, a detailed pro-cedure is given below.

Step 9. Insert the Anritsu Site Master Software Tools For Windows disk in the CDROMdrive.

Step 10. Select Run under the Start menu.

Step 11. Type x:\SETUP, where x = the drive letter of the CDROM drive.

Step 12. Press the Enter key to select the default directory C:\Program Files\Site MasterSoftware Tools\ and begin the Setup routine.

Step 13. When the Setup program prompts, select OK or press the Enter key to restartWindows.

NOTE: The Setup routine will create a new Program Group named “Site MasterSoftware Tools”. This group will contain three file icons, “Read Me,” “Site Mas-ter Help,” and “Site Master Software Tools.”

Step 14. Double-click on the “Read Me” icon to read about recent changes that did notget into this manual and important features or problems that you should knowabout.

Step 15. Double-click on the “Site Master Help” icon to acquaint yourself with the com-prehensive on-line manual. This manual provides descriptive narrative for thevarious program features and controls.

Step 16. Double-click on the “Site Master Software Tools ” icon to open the SoftwareTools program.

Step 17. Click on Settings, in the top menu bar, and select COM Port. Enter the appro-priate COM port number for the serial interface cable (null modem type).

Plot CapturePlots (traces) can be captured either singly from the Site Master display or in multiplesfrom one or more stored-display locations. Both methods are described below.

The recommended method is to capture multiple traces to a database. In one operation, allof the data residing in the up-to-200 stored display memory locations in the Site Master canbe downloaded to a database for easy data management.

NOTE: Trace scale can be captured as per Site Master or as autoscale by thecapture program. To select per Site Master or autoscaling, click on Settings andDefault Plot Settings from the top menu bar and pull-down menu.

5-3


Capture multiple traces to a database

Step 1. Connect the supplied cable as shown in Figure 5-2.

Step 2. Open the Site Master Software Tools program.

Step 3. Double-click on the “Site Master Software Tools” icon to open the program.

Step 4. Click on Capture, in the top menu bar, and select Capture Plots To Databasefrom the drop-down menu.

Step 5. Follow the database instructions to download the plot(s) to either a new databaseor an existing database.

Step 6. Enter the number(s) of the stored-display memory location(s) (1 to 200) fromwhich you wish to store to the database, and click OK.

Step 7. Observe that the “Acquiring Control” box appears on the screen, then disappearsas traces are automatically acquired. The “Database” box appears when theplot(s) has been completely captured into the database.

Capture single or multiple traces to PC screen

Step 1. Perform steps 1, 2, and 3 of the capture-multiple-traces-to-database procedure.

Step 2. Click on the Start Plot Capture icon or click on Capture, in the top menu bar,and select Capture Plots to Screen from the drop-down menu.

Step 3. Enter the number (or numbers) of the stored-display memory location(s) (1 to200) from which you wish to display traces in Site Master Software Tools.

Step 4. Select OK.

Step 5. Observe that the “Acquiring Control” box appears on the screen, then disappearsas the traces are automatically acquired and displayed.

5-4


COM port(Program defaults to COM2)

Serial Interface

HOLDRUN

STARTCAL

AUTOSCALE

SAVESETUP

RECALLSETUP

LIMIT MARKER

SAVEDISPLAY

RECALLDISPLAY

PRINT


SYS

ENTER

CLEAR

ESCAPE

ONOFF

/

1 2

4

5 6

7 8

9 0

3

+-

.

Site Master S251B

625.0 2500.0

1384.45 MHz

2096.66 MHz

Figure 5-2. Serial Cable Connection

Custom Cable List Uploading and DownloadingCustom cable parameters can be uploaded to the Site Master or downloaded from the SiteMaster and saved via the Site Master Software Tools Cable Editor.

Uploading a Cable List to the Site Master Custom Cable Table

Step 1. Connect the supplied cable as shown in Figure 5-2.

Step 2. Open the Cable Editor by clicking on Start, Programs, Site Master SoftwareTools 32 bit and Cable Editor.

Alternatively, open the Site Master Software Tools program, click on Tools inthe top menu bar and select Cable Editor from the drop-down menu.

Step 3. Enter the required information for each custom cable entry:Cable Name - enter the cable descriptionPro. Vel - enter the propagation velocity valueInsertion Loss (dB/m) - enter the insertion loss value in dB/mFrequency (MHz) - enter the frequency in MHzDescription - enter any description associated with that custom cable.

NOTES:As a minimum, the Cable Name and Pro. Vel cells must have entries for theSite Master to accept the selection as a valid cable during uploading. The SiteMaster will assign a zero value to insertion loss if the Insertion Loss cell has noentry.

Information entered into the Frequency and Description cells is not uploaded tothe Site Master and so those cells will have no information when downloadingthe custom cable list from the Site Master back to the Cable Editor.

Step 4. Click on the Upload Cable List icon or click on Tools, in the top menu bar, andselect Upload Cable List.

Step 5. When the message box appears on the screen click OK to the cable upload warn-ing and OK when the cable upload is completed.

Downloading a Cable List from the Site Master Custom Cable Table

Step 1. Perform steps 1 and 2 above to open the Cable Editor.

Step 2. Click on the Query Cable List icon, or click on Tools in the top menu bar andselect Query Cable List.

Step 3. When the status message box appears on the screen, click OK to complete.

Saving a Custom Cable List

To save a custom cable to a file, click on File, in the top menu bar and select Save or Saveas from the drop-down menu.

5-5


Program OperationThe captured trace on the PC can be scaled and have its limit line, markers, and propertieschanged. (Click on the Plot Properties icon, or select Plot Properties under the Viewmenu to make these changes.) The operation of the various menus that allow these opera-tions to be accomplished is straightforward. To read about the operation of the menus, referto the on-line help screens, accessed from the Help menu in the top menu bar.

Fault Location SoftwareA captured RL or SWR trace can be transformed to a Distance to Fault display. This is use-ful for determining the location of faults, connections, and other discontinuities within thecable.

To transform a plot, select Distance to Fault from the Tools menu (or click on the Distanceto Fault icon in the toolbar). A drop down menu will appear that asks you if the DUT is co-axial cable or waveguide.

If coaxial cable is selected, it asks you to supply start and stop distances along with the ca-ble type or propagation velocity and insertion loss values. Tables in Appendix A providethese values for some of the more popular coaxial cables (@ 1000 MHz).

If values are needed at a different frequency, or if you need the exact values for more accu-rate measurement, please contact the coaxial cable manufacturer. Coaxial cables may beadded to the list be editing the cables.lst file. Follow the existing format to enter thedata to the list. Loss is entered in dB/m only.

The distance may be entered in feet or meters. Propagation velocity is used for coaxial ca-ble. The units may be changed by selecting Default Plot Settings under the Settings menuand changing Measurement Units.

After supplying the needed information and clicking OK, a new plot will open showingcoax match vs. distance.

Smith Chart SoftwareAfter obtaining a frequency SWR or RL plot on the computer display, click the SmithChart icon. Read the Help file to see how this feature functions (under Smith Chart andData Readout).

5-6


Saving a Plot as a Windows Metafile or as aSpreadsheet File

Plots can be saved as Windows metafile (.wmf) or as a text file (.txt). The metafile may beimported into graphic programs and a text file can be imported into a spreadsheet program,but they cannot be reloaded into the Site Master Software Tools program.

To save a plot as a Windows Metafile, click on File, in the top menu bar, and select Saveas Metafile from the drop down menu.

To save a plot as a text file to use in a spreadsheet, click on File in the top menu bar and se-lect Export to text file for Spreadsheet from the drop down menu.

Pasting a Plot in Graphic or Spreadsheet For-mat

The data points from a plot can be exported to a graphic application or a spreadsheet via theclipboard. To transfer data to the Windows clipboard:

Step 1. Select Settings and Clipboard Format from the top menu bar and pull-downmenu and choose either graphical or tabular format.

Step 2. Capture or load the desired plot.

Step 3. Copy the data to the clipboard by selecting the Copy Plot Data icon or Copyfrom the Edit menu.

Step 4. To paste to a graphic application, open the application and select Paste from theapplication’s Edit menu.

Step 5. To paste to a spreadsheet, open the spreadsheet program and place the cursorwhere the first data point should appear.

Step 6. Select Paste from the spreadsheet program’s Edit menu.

Saving Data to a DatabasePlots can be saved to a database. Comments can be added to the plot data saved. Queries ofthe database provide a means of comparing plots in the database. Refer to the on-line helpscreens for operating instructions.

To save a plot to a database, click on File, in the top menu bar, and select Save Plot to Da-tabase from the drop-down menu.

“Drag-n-Drop”Site Master Software Tools is Windows based. Graphs can “Drag-n-Drop” onto each other.Site Master Software Tools allows quick comparison of “before” and “after” Distance-To-Fault measurements. Recent data is compared to a historical PC database record, which isusually recorded during site installation/commissioning.

5-7


Each cable/antenna tends to have a unique Distance-To-Fault (DTF) “Signature” becausediffering cable electrical lengths, cable types, dielectric thickness variations, and the posi-tions of components (connectors, adapters, and lightning arresters) will cause different re-flections at differing positions in the transmission line. Variations in the “signature”between maintenance intervals offer a good indication of damage or damage causing condi-tions.

PrintingCaptured traces may be printed from a PC using Site Master Software Tools. Once a cap-tured trace has been downloaded choose Print under the File menu for printing options. Theprinter setup can be altered, plots can be scaled, and multiple plots can be printed from thePrint dialog box.

5-8


Appendix AReference Data

Coaxial Cable Technical DataTable A-1 provides a standard listing of common coaxial cables along with their “RelativePropagation Velocity” and “Nominal Attenuation in dB/m @1000 MHz” values.

A-1

Cable Type Relative Propagation Velocity (Vf ) Nominal AttenuationdB/m @ 1000 MHz

RG8, 8A 0.659 0.262

RG9, 9A 0.659 0.289

RG17, 17A 0.659 0.180

RG55, 55A, 55B 0.659 0.541

RG58, 58B 0.659 0.558

RG58A, 58C 0.659 0.787

RG142 0.690 0.443

RG174 0.660 0.984

RG178B 0.690 1.509

RG188 0.690 1.017

RG213 0.660 0.292

RG214 0.659 0.292

RG223 0.659 0.535

FSJ1-50A 0.840 0.197

FSJ2-50 0.830 0.134

FSJ4-50B 0.810 0.119

LDF4-50A 0.880 0.077

LDF5-50A 0.890 0.043

LDF6-50 0.890 0.032

LDF7-50A 0.880 0.027

LDF12-50 0.880 0.022

HJ4-50 0.914 0.087

HJ4.5-50 0.920 0.054

HJ5-50 0.916 0.042

HJ7-50A 0.921 0.023

LMR100 0.800 0.792

LMR200 0.830 0.344

LMR240 0.840 0.262

LMR400 0.850 0.135

LMR500 0.860 0.109

Table A-1. Coaxial Cable Technical Data (1 of 2)

A-2

Appendix A Reference Data

Cable Type Relative Propagation Velocity (Vf ) Nominal AttenuationdB/m @ 1000 MHz

LMR600 0.870 0.087

LMR900 0.870 0.056

LMR1200 0.880 0.044

LMR1700 0.890 0.033

HCC12-50J 0.915 0.042

HCC78-50J 0.915 0.042

HCC158-50J 0.950 0.023

HCC300-50J 0.960 0.014

HCC312-50J 0.960 0.013

HF 4-1/8" Cu2Y 0.970 0.010

HF 5" Cu2Y 0.960 0.007

HF 6-1/8" Cu2Y 0.970 0.006

FLC 38-50J 0.880 0.115

FLC 12-50J 0.880 0.075

FLC 78-50J 0.880 0.045

FLC 114-50J 0.880 0.034

FLC 158-50J 0.880 0.029

CR50 540PE 0.880 0.070

CR50 1070PE 0.880 0.038

310801 0.820 0.115

311201 0.800 0.180

311501 0.800 0.230

311601 0.800 0.262

311901 0.800 0.377

352001 0.800 0.377

Table A-1. Coaxial Cable Technical Data (2 of 2)

site master s251b

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